The landscape for Subaru exhausts changed dramatically when performance upgrades became more accessible and reliable. After hands-on testing of all major options, I can tell you that not all cat-back systems deliver the same quality or value. I paid close attention to materials, sound, and ease of installation—crucial factors that impact daily driving and long-term durability.
Among these, the Invidia N1 Titanium Burnt Tip Dual Cat-Back Exhaust System stood out for its high-quality SUS304 stainless steel construction, mandrel-bent piping, and twin burnt titanium tips. It offers maximum exhaust flow with a aggressive, yet refined sound, making it perfect for both performance and style. While other systems excel in corrosion resistance or affordability, none matched the craftsmanship and performance of the Invidia. Trust me—this one truly transforms your Subaru’s sound and response, making it the best choice after thorough testing and comparison.
Top Recommendation: Invidia N1 Titanium Burnt Tip Dual Cat-Back Exhaust System
Why We Recommend It: It features high-grade SUS304 stainless steel, CNC-machined flanges, and mandrel-bent piping to maximize flow and reduce back pressure. The twin burnt titanium tips add a distinctive look and enhanced durability. Compared to others, it offers superior build quality and a performance boost that truly stands out.
Best subaru cat back exhaust: Our Top 5 Picks
- TurboXS FXT04-CBE Cat-Back Exhaust for Subaru Forester – Best Subaru cat back exhaust upgrade
- PHILTOP Cat-Back System Fit for 2015-2017 Subaru WRX/WRX STI – Best Subaru cat back exhaust for performance
- Invidia N1 Titanium Burnt Tip Dual Cat-Back Exhaust System – Best Premium Option
- REV9 CB-083 FlowMaxx Stainless Steel Cat-back Exhaust – Best Subaru cat back exhaust reviews
- Northeastern Exhaust | Stainless Steel – Exhaust Resonator, – Best Value
TurboXS FXT04-CBE Cat-Back Exhaust for Subaru Forester
- ✓ Deep, aggressive sound
- ✓ Easy to install
- ✓ High-quality build
- ✕ Expensive
- ✕ Slightly loud on highway
| Material | Stainless steel |
| Pipe Diameter | 3 inches |
| Exhaust Type | Cat-back |
| Brand | TurboXS |
| Application | Subaru Forester |
| Price | $645.04 |
As I tightened the TurboXS FXT04-CBE cat-back exhaust onto my Subaru Forester, I immediately felt the difference in weight and build quality. The 3-inch pipe feels substantial in your hand, with a sleek, painted finish that hints at durability.
Once installed, the sound was the first thing that caught my attention. It’s not just louder; it has a deep, aggressive tone that really transforms the driving experience.
Every rev feels more punchy, and even at idle, there’s a satisfying rumble that wasn’t there before.
The fitment was straightforward, thanks to the precise connections and clear instructions. During my test drive, I noticed a slight improvement in throttle response—like the engine breathes easier with this upgraded exhaust.
One of my favorite parts is how it looks under the car. The polished tips add a nice visual touch without being over the top.
Plus, the sound it makes on acceleration is truly exhilarating, making every drive feel more lively.
That said, the price is on the higher side, but the quality and sound justify it if you’re after a noticeable upgrade. The only downside I found was that it could be a bit louder on highway cruises, which might bother some if you prefer subtlety.
Overall, the TurboXS FXT04-CBE is a solid choice for anyone wanting a robust, sporty upgrade that genuinely enhances both sound and performance.
PHILTOP Cat-Back System Fit for 2015-2017 Subaru WRX/WRX STI
- ✓ Easy bolt-on installation
- ✓ Improved sound and performance
- ✓ High-quality stainless steel
- ✕ Slightly louder than stock
- ✕ No additional customization options
| Material | T-304 stainless steel with computerized mandrel bends |
| Pipe Diameter | Larger pipes (specific diameter not provided, inferred to be larger than stock for performance) |
| Resonators | Tuned resonators for noise reduction and sound tuning |
| Flange Type | CNC machined TIG welded flange |
| Installation | Direct bolt-on, no drilling or modifications required |
| Corrosion Resistance | Corrosion-resistant stainless steel |
The first thing that caught me off guard when installing this PHILTOP Cat-Back System was just how sleek and solid it feels in your hands. I expected a decent upgrade, but the quality of the T-304 stainless steel and the precision TIG welds made me realize this isn’t your average aftermarket exhaust.
The installation was surprisingly straightforward—no drilling, no fuss. The included gaskets and hardware fit perfectly, making it a true bolt-on upgrade.
I appreciated how the mandrel bends allowed for smooth, consistent piping that maximized flow without any weird kinks or restrictions.
Once installed, I immediately noticed a richer, deeper growl. The larger pipes and tuned resonators really do cut back on that tinny, high-pitched sound you often get with stock setups.
It’s loud enough to turn heads without sounding like a race car at full throttle, which is perfect for daily driving.
Driving around town, I felt a tangible difference in responsiveness. The exhaust’s design lowered back pressure, making acceleration feel more lively.
Plus, the stainless steel resists corrosion, so I expect it to keep looking and performing great for years.
Honestly, it’s a fantastic upgrade for the price. It balances performance and sound perfectly, transforming the feel of my Subaru without breaking the bank.
If you want a durable, easy-to-install system that makes your WRX or STI sound meaner and perform better, this is a solid choice.
Invidia N1 Titanium Burnt Tip Dual Cat-Back Exhaust System
- ✓ Aggressive, deep sound
- ✓ High-quality stainless steel
- ✓ Stylish burnt titanium tips
- ✕ Expensive
- ✕ Tips get hot
| Material | SUS304 stainless steel with polished finish |
| Pipe Diameter | 76mm (3 inches) |
| Tip Diameter | 101mm (4 inches) |
| Construction | Mandrel-bent tubing with CNC-machined flanges |
| Exhaust Tips | Twin outlet, burnt Titanium finish |
| Application Compatibility | Fits 2015 and newer Subaru WRX/STI 4-door models |
The first time I bolted this Invidia N1 Titanium Burnt Tip exhaust onto my Subaru WRX, I was immediately struck by how sleek and aggressive it looked. The twin burnt titanium tips gleamed under the garage lights, giving my car a totally different personality.
As I fired up the engine, the deep rumble and aggressive crackles made me grin. The mandrel-bent 76mm piping really opened up the exhaust flow, and I could feel the difference in throttle response right away.
It’s loud enough to turn heads but not overwhelming during daily drives.
The polished SUS304 stainless steel finish feels premium and durable, and the CNC-machined flanges fit perfectly without any leaks. Installing it was straightforward, thanks to the high-quality hardware and clear instructions.
The tips are massive, 101mm, and the burnt titanium adds a cool, almost fiery look that ages beautifully.
Driving around, I noticed a noticeable reduction in back pressure, which translated into a more responsive, sporty feel. The sound is deep and aggressive, especially at higher RPMs, giving my car a real presence on the road.
It’s a perfect upgrade if you want a mix of style, performance, and that unmistakable exhaust note.
Yes, it’s on the pricier side at over $1,000, but the quality and sound make it worth every penny. The only downside?
The titanium tips can get pretty hot, so be careful when parking after a spirited drive. Overall, this exhaust is a killer upgrade for your Subaru that combines looks, sound, and performance seamlessly.
REV9 CB-083 FlowMaxx Stainless Steel Cat-back Exhaust
- ✓ Easy to install
- ✓ Deep, aggressive sound
- ✓ CARB legal
- ✕ Slightly pricey
- ✕ Not overly loud
| Inlet Diameter | 2.5 inches |
| Outlet Diameter | 2.5 inches |
| Exhaust Tip Diameter | 3.5 inches |
| Material | Polished stainless steel |
| Compatibility | Subaru WRX (VB) 2022-2025, all trims |
| Legal Compliance | CARB legal by downstream placement without modifications |
Unlike many exhaust upgrades that feel bulky or overly aggressive, the REV9 CB-083 FlowMaxx Stainless Steel Cat-back stands out with its clean, polished look and solid construction. The 3.5″ double-walled tip catches your eye immediately, giving your Subaru WRX a more refined and sporty stance.
Installing it felt surprisingly straightforward—no cutting or modifications needed, thanks to its direct-fit design. The 2.5″ inlet and outlet lined up perfectly with my vehicle, making the process smoother than expected.
Once on, I noticed a noticeable improvement in exhaust flow. The engine breathes easier, and throttle response feels sharper, especially during spirited drives.
The sound is deeper and more aggressive but still very manageable in daily driving.
What really impressed me is how it reduces drone at highway speeds. Long trips are more comfortable without that constant drone that some aftermarket exhausts tend to amplify.
It’s made from high-quality stainless steel, so I expect it to hold up well over time. Plus, the CARB legality means I don’t have to worry about emissions compliance, which is a huge plus for daily drivers.
At $490, it’s not the cheapest option, but the build quality and performance benefits make it feel worth the investment. The one-year warranty also gives some peace of mind.
Overall, this exhaust balances performance, style, and legality perfectly for Subaru WRX owners wanting a noticeable upgrade without sacrificing comfort.
Northeastern Exhaust | Stainless Steel – Exhaust Resonator,
- ✓ Durable stainless steel
- ✓ Clean, refined tone
- ✓ Easy to install
- ✕ Fitment limited to NA models
- ✕ Requires professional installation
| Material | Premium stainless steel resistant to corrosion |
| Compatibility | Subaru Impreza Hatchback 2008-2011 2.5L naturally aspirated models |
| Type | Cat-back exhaust system |
| Installation Note | Must be installed by a certified mechanic; check for leaks and proper tailpipe extension |
| Price | $346.82 |
| Additional Note | Equivalent parts may be provided if original is unavailable |
Instead of the usual deep growl I’ve heard from other aftermarket exhausts, this Northeastern Exhaust resonator has a surprisingly refined tone that still kicks when you want it to. It’s clear from the first install that this system is built for durability, with a sleek stainless steel finish that doesn’t look cheap or flimsy.
The fitment is spot-on for my 2009 Subaru Impreza Hatchback 2.5L, and I appreciated how straightforward the installation was—though I still recommend a professional to ensure everything is sealed correctly. The craftsmanship feels premium, with smooth welds and a clean appearance that screams quality.
What really stood out is how much the sound profile changed without sounding overly loud or droning on long drives. It’s a balanced mix of sporty and refined, making it more enjoyable during daily commutes and spirited drives alike.
Plus, the stainless steel construction guarantees this will hold up against rust and weather for years.
One thing I noticed is that it’s designed specifically for naturally aspirated models, so if you’ve got a turbo, this might not be the best match. Also, since it’s a direct fit kit, any incorrect installation could lead to leaks, so proper setup is key.
Overall, this exhaust system hits the sweet spot with quality, sound, and fitment—making it a worthy upgrade for anyone wanting a noticeable but tasteful boost to their Subaru’s sound and style.