The landscape for Honda Civic turbo setups changed dramatically when affordable, plug-and-play TD025 variants hit the market. I’ve tested multiple kits in my shop, and the number-one takeaway is reliability under heat and pressure. You want responsive spool, durable alloys, and clear fitment notes you can trust on a 1.5L Civic or CR-V crossover engine.
From street pulls to spirited daily drives, the best option should deliver consistent boost with minimal installation drama. After weighing fitment, wastegate actuation, gasket inclusion, and real-world durability, one kit stands out for its direct replacement fit and solid alloy build. It keeps the turbo responsive without nagging leaks or misfires, and the vendor provides clear compatibility checks to avoid surprises. If you’re upgrading for meaningful power gains without the guesswork, this is the one I’d install on my own car.
Top Recommendation: Product 1: Complete Turbo Turbocharger Kit w/Actuator & Gasket Fits
Why We Recommend It: It offers a true direct-replacement fit for multiple Civic 1.5T and CR-V 1.5T models, includes a wastegate actuator and gasket, and uses a thoughtfully crafted alloy housing designed for high heat and pressure. Its listed compatibility, plus detailed OE-number coverage, reduces the risk of wrong-part purchases compared with others. The kit’s robust build and comprehensive packaging translate to reliable, repeatable performance under real-world driving.
Best turbocharger for honda civic: Our Top 5 Picks
- Complete Turbo Turbocharger Kit w/Actuator & Gasket Fits – Best Honda Civic turbo kit
- A-Premium TD025L4B Turbo Kit with Actuator, Honda Civic 1.5L – Best best turbocharger for Honda Civic
- Lamerto TD025 Turbo Turbocharger 49373-07012 2016-2019 – Best Honda Civic performance turbocharger
- NEW Turbo Turbocharger Actuator 2018-2022 Honda Accord – Best turbocharger for Honda Civic
- Turbo Air Pipe Joint with PCV & Gasket — Honda – Best Value
Complete Turbo Turbocharger Kit w/Actuator & Gasket Fits
- ✓ Solid alloy build
- ✓ Direct replacement fit
- ✓ Includes actuator & gasket
- ✕ Pricey for some
- ✕ Installation complexity
| Turbocharger Model | TD025 |
| Compatible Engine Platforms | Honda 1.5T L15B7 (2016-2021 Civic, 2017-2022 CR-V) with AP2T/L15B7 engines |
| Wastegate Actuator Included | Yes |
| Gasket/Seal Included | Yes |
| Direct Replacement OE Numbers Replaced | 49373-07010 to 49373-07015, 18900-5AA-A01 to 18900-5AA-A012-M3, 189005AAA010M3 to 189005AAA012M3 |
| Construction Material | Thoughtfully crafted alloy build designed for high heat and pressure resistance |
You’re in the garage late Sunday afternoon, cranking the Civic’s hood to swap to this Complete Turbo Turbocharger Kit. The moment you slide the actuator and gasket into place, you notice the kit’s solid, alloy look—not flimsy castings, but something you’d trust under heat and high rpm.
It feels like the part you didn’t know you needed until you actually used it.
When you pull off the stock hardware, the TD025 turbo comes with an OEM-friendly fitment that slides into the same mounting points. The included wastegate actuator is a real plus, so you don’t have to chase extra pieces to get boost under control.
You’ll appreciate the thoughtful packaging that keeps each piece from rattling during transit and handling.
In use, you’ll notice the turbo’s response is snappier than a stock setup without chasing boost leaks. The build is clearly designed for reliability under heat, which matters on long highway pulls or spirited canyon runs.
It’s reassuring to know the gasket and seal are there—fewer late-night calls to the parts store means you can actually finish the project.
For everyday driving, you’ll find the kit easy to install if you’ve done similar upgrades before. The packaging even calls out to verify your exact model and year, which saves you time double-checking fitment after you’ve lugged everything out of the garage.
If you hit a snag, the seller’s 24-hour support promise feels genuine, not just a line.
Overall, this kit feels like a well-considered upgrade for the 1.5T Civic or CR-V owners who want a durable, direct-replacement turbo without chasing incompatible parts. It’s not a budget throw-in, but it’s a solid long-term upgrade that won’t gamble with your engine’s reliability.
A-Premium TD025L4B Turbo Kit with Actuator, Honda Civic 1.5L
- ✓
- ✓ Solid build quality
- ✓ Clear fitment notes
- ✓ Reliable boost response
- ✓
- ✕
- ✕ Fits non-Si models only
- ✕
| Turbo.model | TD025L4B |
| Compatible.vehicles | Honda Civic 2016-2021 1.5L L4 (not for Si submodel) |
| Actuator_included | Wastegate actuator included |
| Gasket_included | Gasket included |
| Part_numbers | 49373-07012, 49373-07013, 49373-07015, 49373-07014, 49373-07011, 49373-07010, 18900-5AF-H010-M3, 18900-5AA-A011-M3, 18900-5AA-A010-M3, 18900-5AA-A01, 18900-5AA-A012-M3 |
| Warranty | One-year unlimited-mileage guarantee |
You slide the A-Premium TD025L4B Turbo Kit onto the workbench and the first thing you notice is the weight—solid alloy that feels substantial without tipping into brute-force territory. The actuator glows a confident metallic blue, and the gasket set sits snug in a foam tray like a small treasure chest.
It doesn’t feel flimsy right out of the box; it feels like something you’d trust under a Civic’s hood for miles of spirited driving.
Installation cues are straightforward, and you’ll appreciate the included wastegate actuator if you’ve done this before. The kit’s labeling is clear, and the matching part numbers line up with the Civic’s 2016-2021 1.5L platform, so you won’t be chasing fitment rumors in forums.
You’ll notice the machining on the compressor housing is smooth, with minimal rough edges that could snag a gasket during a tight reinstall.
During a test run, throttle response wakes up noticeably without the lag you fear from a turbo upgrade. You’ll hear a crisp spooling cadence that’s audible enough to notice in a quiet garage, but not so loud it becomes annoying on a daily drive.
On-boost feel is steady, and the kit sits comfortably within the playbook of a reliable, user-friendly upgrade for street performance.
For real-world usability, you’ll value the one-year unlimited-mileage guarantee that gives you peace of mind after a few aggressive pulls. The kit’s compatibility note matters—double-check your exact Civic trim because Si models aren’t the target here, but the rest of the lineup benefits from this robust turbo option.
It’s a practical upgrade that doesn’t pretend to be flashy, just dependable horsepower.
In everyday terms, you’ll likely use it for weekend blasts, occasional track days, or simply enjoying a more responsive daily driver. It’s a thoughtful, well-packaged upgrade that acknowledges the realities of maintenance and fitment without skimping on performance punch.
Lamerto TD025 Turbo Turbocharger 49373-07012 2016-2019
- ✓ Direct replacement fit
- ✓ Solid build quality
- ✓ Noticeable throttle response
- ✕ Verify OEM compatibility
- ✕ Requires precise installation
| Engine/Turbocharger Model | Lamerto TD025 Turbocharger |
| Compatible Vehicles (OEM Part Numbers) | 18900-5AA-A01, 49373-07011, 49373-07012, 49373-07013, 49373-07100, 189005AAA01 |
| Replacement Type | Direct Replacement for Honda Civic 1.5L and Honda CR-V 1.5L (2013-2020 model years) |
| Fitment Notes | Compatibility verified by OEM part number; ensure OEM number matches before purchase |
| Category/Primary Use | Turbocharger for 1.5L Honda turbocharged engines (Civic, CR-V) |
You pop the hood, and that chrome badge on the Lamerto TD025 catches your eye, but it’s the subtle, solid weight you notice first. The moment you grab the turbine housing, it feels like a real drop-in part rather than a generic replacement.
Fitment is the first win here. You’ll need to double‑check OEM numbers (18900-5AA-A01 or 49373-07012 family) and illustrations, but once you confirm, the direct replacement slides in with minimal fuss.
It’s the kind of upgrade that doesn’t demand a bunch of custom mods or spacers to work.
During installation, you’ll appreciate the precision of the mounting flanges and the clean, sturdy plumbing ports. It feels like a factory part, not a loose aftermarket cast, which translates to smoother startup and less fiddling once the clamps are tightened.
In daily driving, you notice the turbo responsiveness improve without the usual lag you fear with budget replacements. You’ll hear a crisp spool when you put your foot down, and the car settles into a steady, confident push around town and on the highway.
Owner notes matter here: check the OEM part number and verify the model year compatibility. If you’re chasing a reliable, reasonably priced replacement for a 2013–2020 Civic or 2017–2020 CR-V 1.5L, this Lamerto unit stocks up well against stock turbo behavior, offering a practical balance of performance and cost.
Real-world usage feels straightforward, and that’s the key selling point. You’ll appreciate the consistency and the peace of mind that comes from a product designed to slot into the exact engines these models use.
Bottom line: the Lamerto TD025 is a sensible upgrade that delivers noticeable performance without turning your maintenance routine into a headache.
NEW Turbo Turbocharger Actuator 2018-2022 Honda Accord
- ✓ Solid build quality
- ✓ Smooth, predictable boost
- ✓ Strong warranty
- ✕ Slightly higher price
- ✕ Replacement timing can vary
| Applicable Vehicles | Honda Accord 2018-2022 with L15BM/L15BN 1.5L turbo engine |
| Turbocharger Part Numbers | 6A0-F4-T/C, 18900-6A0-001, 18900-6A0-002, 18900-6A0-003, 18900-64A-A11, 18900-64A-A01, 189006A0003, 1890064AA11, 000204-0044, 180810528E, 181201132E, 847-1654, 14039149-101, 14039149-102, 14039149-103, 14039149-104 |
| Warranty | 24-month warranty |
| Material/Build Rationale | Designed for high-temperature and high-pressure operation with corrosion-resistant materials |
| Expected Benefit | Improved fuel economy and combustion efficiency by using exhaust energy to compress intake air |
| Compatibility Note | Replaces OEM Turbocharger with kit-compatible integration |
| Brand | Bopowo |
You notice the turbocharger actuator standing taller than the stock unit, with a solid, no-nonsense finish that tells you it’s built for real road abuse. It feels reassuring in your hands, and you can see the attention to corrosion resistance in the quick-connect fittings and the sturdy actuator arm.
It’s clear this isn’t a flimsy replacement.
On install, you appreciate the compatibility notes that line up with the L15BM/L15BN 1.5-liter setup, making the swap feel straightforward rather than guesswork. The bracket mounting points line up cleanly, and the O-ring seals sit snugly without fuss.
You’ll likely notice quicker response from the exhaust-driven boost as the engine learns your driving style.
In daily driving, the throttle feel shifts subtly but noticeably. You’re not chasing dramatic gains, but you do get steadier power delivery and a touch more mid-range torque.
It doesn’t surge unpredictably; instead, it adds predictable power when you need it for overtakes or highway merges. Fuel economy in mixed driving is your friend here, thanks to more efficient combustion under boost.
During city commutes, you’ll value the reliability and the included warranty window. The 24-month coverage gives you confidence to push a bit more without the usual “is this the part that will fail next?” anxiety.
It’s a calm, steady upgrade—more responsive than stock, without turning your car into a loud, high-maintenance project.
If you’re weighing this against other options, you’ll notice the build quality and the thoughtful material choices stand out. It’s the kind of part that makes you feel you’ve upgraded not just the performance, but the long-term durability of the engine.
Turbo Air Pipe Joint with PCV & Gasket — Honda
- ✓ Solid seal, no leaks
- ✓ Clean PCV integration
- ✓ Sturdy, compact fit
- ✕ Installation familiarity needed
- ✕ Limited color/options
| Fitment | Honda Civic 1.5 Turbo 2016-2021 |
| Material | PCV pipe with gasket |
| Gasket Type | OEM-style gasket for turbo pipe joint |
| Brand | ApplianPar |
| Price | $58.99 |
| Application Scope | Turbocharger pipe joint replacement for Honda Civic 1.5 Turbo |
I’ll be honest: this Turbo Air Pipe Joint with PCV & Gasket finally landed on my bench, and I immediately noticed the tight fit around the Honda Civic’s turbo intake elbow. The matte finish and snug 3-bolt design feel deliberate, not flimsy plastic pretending to be metal.
It sits tall enough to clear nearby hoses, yet compact enough not to crowd the surrounding engine bay.
As I lined it up with the Civic 1.5 Turbo, the gasket handed me a reassuring seal you can feel when you press it in place. It clicks into the stock flange with a confident little resistance that tells you it’s not going to shift or wobble under boost.
The PCV integration is clean, and the harbor of the PCV port looks compatible with common Civic configurations.
During a quick test, I ran the engine with gentle revs and watched for leaks around the joint. There was nothing creeping at idle or under intermediate boost, which is exactly what you want from a pipe joint advertised for a turbo setup.
The overall build feels sturdy enough to ride through a few heat cycles without softening or warping.
In daily driving, you’ll notice the benefit of a reliable seal when you’re swapping tunes or doing maintenance without worrying about air leaks. The install is straightforward if you’re familiar with Honda turbo plumbing, and the gasket texture provides a comfortable seal without needing excessive torque.
It’s not a cosmetic upgrade, but the peace of mind it brings is real when you’re chasing reliability on a boosted Civic.
Bottom line: it’s a practical, well-executed piece that matches the Civic’s needs without adding bulk or complexity. If you’re upgrading to better PCV airflow and a robust joint, this one keeps things clean and dependable.
What Should You Consider When Selecting the Best Turbocharger for Honda Civic?
When selecting the best turbocharger for a Honda Civic, there are several key factors to consider that can significantly affect performance and compatibility.
- Turbocharger Size: The size of the turbocharger is crucial as it impacts the engine’s performance characteristics. A larger turbo may provide more power at higher RPMs, while a smaller turbo can enhance responsiveness and low-end torque, making it essential to match the size to your driving preferences.
- Boost Pressure: Different turbochargers offer varying levels of boost pressure, which directly affects the engine’s horsepower and torque. It’s important to select a turbo that aligns with your engine’s capabilities and desired performance goals to avoid potential damage from excessive boost.
- Engine Compatibility: Not all turbochargers are designed for every engine configuration; ensuring that the turbo you select is compatible with your specific Honda Civic model is vital. This includes considering factors like mounting points, exhaust manifold design, and overall fitment to avoid installation issues.
- Quality and Brand Reputation: The reputation of the turbocharger manufacturer can influence the reliability and performance of the unit. Opting for well-known brands with positive reviews can provide peace of mind regarding the turbocharger’s longevity and effectiveness.
- Installation Requirements: Some turbochargers may require extensive modifications to the vehicle, such as upgrading fuel systems or intercoolers. Assessing the complexity of the installation process and additional components needed can help you prepare for potential costs and labor involved.
- Warranty and Support: A solid warranty and customer support can be crucial if issues arise with the turbocharger after purchase. Many reputable manufacturers offer warranties that can protect your investment and ensure you have access to assistance if needed.
- Cost: Finally, the price of the turbocharger should fit within your budget while also considering the potential performance gains. It’s important to balance cost with quality to ensure that you are getting the best value for your investment.
Which Are the Most Recommended Turbochargers for Honda Civic?
BorgWarner EFR 7163: The EFR 7163 is designed with cutting-edge technology, including an integrated wastegate and a high-efficiency turbine. This turbocharger not only spools up quickly but also supports substantial power gains, making it an excellent option for both street applications and racing. Its compact design fits well within the Civic platform, allowing for cleaner installations.
Rev9 RACING Turbo Kit: This turbo kit is an economical option that includes all necessary components for a straightforward installation. It is particularly appealing for enthusiasts who want to boost their Civic’s performance without breaking the bank. The kit is designed to deliver significant power increases while ensuring compatibility with various engine setups.
Precision Turbo PT5858: The PT5858 is designed for those who are serious about performance tuning, capable of supporting over 600 horsepower with the right setup. Its large compressor and turbine wheels allow for higher boost levels without compromising efficiency. This turbocharger is ideal for builds that prioritize performance above all, making it a popular choice among professional tuners.
What Features Make the Garrett GT2860R Stand Out Among Turbochargers?
The Garrett GT2860R is renowned for its performance and efficiency, making it a popular choice among enthusiasts, particularly for Honda Civic builds.
- Compact Size: The GT2860R is designed with a small footprint, which makes it easier to install in tight engine bays like those found in Honda Civics.
- Ball Bearing Design: This turbocharger utilizes a ball bearing system that reduces friction and allows for quicker spool times, resulting in more immediate throttle response.
- High Efficiency: The GT2860R features advanced aerodynamics in its compressor and turbine wheels, offering high efficiency at various boost levels for optimal performance.
- Versatile Power Range: Capable of producing a wide range of horsepower, it can support builds from mild to aggressive setups, making it suitable for different performance goals.
- Durability: Built with high-quality materials, the GT2860R is designed to withstand high temperatures and pressures, ensuring longevity and reliability under demanding conditions.
The compact size of the Garrett GT2860R makes it particularly suitable for Honda Civics, where engine space is often limited. This allows for easier installation and fewer modifications to the vehicle’s existing setup.
The ball bearing design significantly enhances the turbo’s responsiveness. This means that drivers can experience power delivery almost instantaneously, which is a critical factor for performance-oriented builds where responsiveness is key.
With its high efficiency, the GT2860R can maintain optimal performance across various RPM ranges. This makes it an excellent choice for tuners looking to achieve a good balance between power and drivability.
Its versatility allows the GT2860R to cater to a broad spectrum of performance needs, meaning it can be effectively used in everything from daily drivers to fully built racing engines. This adaptability makes it a favorite among Honda Civic enthusiasts.
The durability of the GT2860R ensures that it can handle high-performance applications without the risk of premature failure. This reliability is essential for those who push their vehicles to the limit, giving drivers peace of mind during high-stress conditions.
Why Is the BorgWarner EFR Series Highly Rated by Honda Civic Enthusiasts?
The BorgWarner EFR Series turbochargers are favored by Honda Civic enthusiasts for several compelling reasons:
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Efficiency and Performance: The EFR Series features modern aerodynamics and advanced materials, resulting in improved turbo efficiency. This means quicker spool times, reduced turbo lag, and enhanced power output.
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Integrated Wastegate and Bypass Valve: Many models come with an integrated wastegate, simplifying installation while also providing better boost control. The active bypass valve allows for enhanced throttle response, improving driveability.
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Durability: Made from high-quality materials, the EFR Series is built to withstand extreme conditions. This durability ensures longevity and reliability, essential for performance-driven applications.
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Versatility: Available in various sizes, these turbochargers can suit different performance goals, ranging from mild street builds to high-horsepower race setups, making them a popular choice among diverse Civic owners.
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Lightweight Design: The compact and lightweight structure of BorgWarner EFR turbochargers contributes to overall vehicle dynamics, allowing for better handling and reduced stress on the engine components.
These attributes help the EFR Series stand out in the competitive market, drawing many Civic owners looking for quality and performance enhancements.
What Benefits Can You Expect from Installing a Turbocharger on Your Honda Civic?
Installing a turbocharger on your Honda Civic can significantly enhance its performance and driving experience.
- Increased Horsepower: Turbochargers can dramatically boost the engine’s horsepower by forcing more air into the combustion chamber, allowing for greater fuel combustion.
- Improved Torque: A turbocharger enhances low-end torque, providing better acceleration and responsiveness, especially during highway merging or overtaking.
- Enhanced Fuel Efficiency: By optimizing the air-fuel mixture, a turbocharger can improve fuel efficiency, allowing for better mileage compared to naturally aspirated engines.
- Better Performance at Higher Altitudes: Turbochargers compensate for the thinner air at higher elevations, maintaining engine power and performance where normally aspirated engines would struggle.
- Customization and Tuning Potential: Turbochargers offer a wide range of tuning options, enabling enthusiasts to customize their vehicle’s performance to suit their driving style and preferences.
Increased Horsepower: A turbocharger can increase the horsepower output of your Honda Civic significantly. By using exhaust gases to spin a turbine, it compresses the intake air, allowing for more oxygen in the combustion chamber, which leads to a more powerful engine response.
Improved Torque: Turbochargers provide a boost in torque, particularly at lower RPMs, making the vehicle feel more powerful during acceleration. This improvement enhances the driving experience, especially in situations requiring quick bursts of speed, such as merging onto highways or passing slower vehicles.
Enhanced Fuel Efficiency: With a turbocharger, the engine can achieve better fuel efficiency by improving the combustion process. This is particularly beneficial for daily driving, as it can lead to savings at the pump while still providing the performance boost that enthusiasts desire.
Better Performance at Higher Altitudes: Turbochargers are especially advantageous for drivers in mountainous regions, as they help maintain power levels where naturally aspirated engines would lose efficiency due to reduced air density. This ensures that your Honda Civic remains responsive and powerful, regardless of elevation.
Customization and Tuning Potential: The installation of a turbocharger opens the door to various tuning opportunities, allowing owners to adjust settings for more power, efficiency, or a balanced approach. This flexibility enables drivers to personalize their Civic’s performance, making it a more enjoyable and unique driving experience.
What Common Problems Might You Encounter When Choosing a Turbocharger for Honda Civic?
When choosing the best turbocharger for a Honda Civic, several common problems may arise:
- Compatibility Issues: It’s crucial to ensure that the turbocharger you choose is compatible with your specific model and engine type. Some turbochargers may require additional modifications or upgrades to fit properly, which can lead to increased costs and complexity.
- Boost Lag: A common issue with turbochargers is boost lag, which can affect performance. This occurs when there is a delay between pressing the accelerator and the turbo providing the additional power, often due to the size of the turbo not matching the engine’s characteristics.
- Heat Management: Turbochargers generate significant heat during operation, and inadequate heat management can lead to engine damage or reduced performance. It is essential to consider whether additional cooling solutions, such as upgraded intercoolers or oil coolers, are necessary for your setup.
- Installation Complexity: Installing a turbocharger can be a complex process that may require specialized tools and expertise. If not done correctly, it can lead to a variety of mechanical issues or even engine failure, making it vital to consider whether you will perform the installation yourself or hire a professional.
- Cost vs. Benefit: Turbochargers can vary widely in price, and it’s important to evaluate whether the performance gains justify the investment. Sometimes, opting for a cheaper turbo might save money initially but could lead to higher maintenance costs or lower performance in the long run.
- Supporting Modifications: To maximize the performance of a turbocharger, supporting modifications such as upgraded fuel injectors, a high-flow fuel pump, and enhanced exhaust systems may be necessary. Failing to account for these can result in suboptimal performance and potential damage to the engine.
- Reliability Concerns: Not all turbochargers are built to the same standards, and some may be more prone to failure than others. Researching the reliability and track record of various brands and models can help avoid potential problems down the line.
How Much Should You Budget for a Honda Civic Turbocharger Upgrade?
When considering a turbocharger upgrade for your Honda Civic, budgeting is a crucial step that involves several factors. The cost can vary significantly based on the type of turbocharger, installation complexity, and additional components required.
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Turbocharger Costs:
– Entry-level turbochargers for Honda Civics typically range from $500 to $1,500.
– High-performance options or aftermarket kits may cost between $1,500 to $4,000. -
Installation Expenses:
– Professional installation services can add another $500 to $1,500 to your budget, depending on the shop and the complexity of the job. DIY installation can save money but requires mechanical knowledge. -
Supporting Modifications:
– To ensure optimal performance, budget for additional upgrades, including:- Fuel injectors: $200 – $600
- Upgrade fuel pumps: $100 – $300
- Intercoolers: $200 – $800
- Engine management systems: $300 – $1,200
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Tuning:
– Don’t forget to allocate funds for professional tuning after installation, usually costing $300 to $800 to ensure everything runs smoothly.
In total, a comprehensive budget for a Honda Civic turbocharger upgrade could range from $1,500 to over $7,000, based on the choices made. Thus, planning your finances carefully will help you achieve your performance goals effectively.
How Can You Maintain Your Turbocharger for Optimal Performance?
To maintain your turbocharger for optimal performance, consider the following key practices:
- Regular Oil Changes: Frequent oil changes are essential to keep the turbocharger lubricated and functioning smoothly. Clean oil reduces friction and wear on the turbo’s moving parts, which can extend its lifespan and improve efficiency.
- Check for Boost Leaks: It’s important to inspect the entire intake system for any leaks that could affect turbo performance. Even small leaks can lead to reduced boost pressure and engine inefficiency, so maintaining a secure and leak-free system is vital.
- Monitor Exhaust Temperature: Keeping an eye on the exhaust temperature can help you detect potential issues before they escalate. Excessively high temperatures can indicate a problem with the turbo or engine tuning, potentially leading to premature failure.
- Allow Cool Down Time: After driving, especially under heavy load, allow your engine to idle for a few minutes before shutting it off. This cooling period helps to prevent turbocharger damage by allowing the turbo to cool down gradually, reducing the risk of oil coking.
- Use Quality Fuel: The use of high-octane fuel can optimize turbocharger performance by preventing knock and ensuring efficient combustion. Poor-quality fuel can lead to engine knocking, which can harm the turbo and overall engine health.