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Catback Exhaust System for 2015-2021 Subaru WRX / STI, 4-inch Quad Muffler Tips, N1 Style Burnt Tip

Chris P.

This Catback sounds insane!!

I was very surprised by the quality of this catback, being so adorable, I thought i would be getting a very cheap, poorly welded exhaust. The welds look like what you'd expect out of an exhaust triple the price. And same goes for the sound! I highly recommend giving flashark a chance if your looking for an exhaust!

Catback Exhaust System for 2015-2021 Subaru WRX / STI, 4-inch Quad Muffler Tips, N1 Style Burnt Tip

09/28/2025

2008-2021 Subaru WRX Sedan and 2011-2021 Subaru WRX STI Sedan Cat-Back Exhaust System

Anthony D.

2008-2021 Subaru WRX Sedan Cat-Back

I never leave feedbacks when I buy stuff but I seen this hasn't been reviewed so I wanted to give my honest feedback to anyone looking to buy this exhaust setup and it seems to good to be true for the price. Honestly 10/10 easy install and sounds great too I have a full 3" downpipe and with this makes it sounds better than my old exhaust setup . If you guys are looking for a new exhaust setup for your wrx. Ill recommend it

2008-2021 Subaru WRX Sedan and 2011-2021 Subaru WRX STI Sedan Cat-Back Exhaust System

09/27/2025

Steven H.

SBC Alternator/Power Steering Pump Accessory Drive Bracket Kit for Double Hump Heads 305 327 350 383 5.0L 5.7L V8

09/27/2025

Y Pipe Downpipe Exhaust for 2008-2016 Nissan 370Z Z34 / Infiniti G37 V36 VQ37VHR 3.7L

kevin s.

370z y pipe

I'm very pleased with my purchase so far. The pipe fit almost perfectly. Sounds good too. Highly recommend!

Y Pipe Downpipe Exhaust for 2008-2016 Nissan 370Z Z34 / Infiniti G37 V36 VQ37VHR 3.7L

09/27/2025

Brandon D.

Quad muffler burnt tip cat back exhaust

Bought the exhaust. Took awhile to get it due to being out of stock but once it was in stock they NDA it to me. Kept me in the loop about when it would be available also. Came as pictured. Was easy to install. Looks good and sounds good. Only real issue I had was they did not include the adapter to hook it up to the cat so I had to purchase it separately. Would like to see them add it to the kit but overall can't complain.

Catback Exhaust System for 2015-2021 Subaru WRX / STI, 4-inch Quad Muffler Tips, N1 Style Burnt Tip

09/26/2025

Turbo Downpipe Exhaust for Subaru GT35 & GT35R 3 Inch

Juan B.

Good quality

Item worked as it should and it’s a good quality

Turbo Downpipe Exhaust for Subaru GT35 & GT35R 3 Inch

09/25/2025

Catback Exhaust System 4" Quad Muffler Tip w Polished Tip for 2015-2024 Subaru WRX / STI

Allan

Subaru sti 2017 Cobb catted down pipe and intake and tune

Really nice tone really good quality and easy to install

Catback Exhaust System 4" Quad Muffler Tip w Polished Tip for 2015-2024 Subaru WRX / STI

09/22/2025

Exhaust Header for 1996-2001 Chevrolet Chevy S10 Blazer GMC Sonoma Jimmy 4.3L V6 4WD

Vaughn N.

Tight fit

I put these on a 2004 Blazer. They will work if you can cut off the EGR tubes and weld up the holes. They are built very well and installed in the same location as the stock manifolds. Use a little high temp silicone at the contact areas and they seal completely. I am very pleased with these and love showing them off.

Exhaust Header for 1996-2001 Chevrolet Chevy S10 Blazer GMC Sonoma Jimmy 4.3L V6 4WD

09/22/2025

The_silver.rexx

Best exhaust for the price

This is the best sounding exhaust on the market for $250. I highly recommend this exhaust to anyone who’s got a 2015-2021 WRX/STI

Catback Exhaust System 4" Quad Muffler Tip w Polished Tip for 2015-2024 Subaru WRX / STI

09/20/2025

Joseph L.

Flashshark catback exhaust worth every penny

What a great product the shipping was fast it was pkg well the build quality was impeccable fitment was excellent and it sounds amazing very happy with my purchase and the best part was the price

Catback Exhaust System 4" Quad Muffler Tip w Polished Tip for 2015-2024 Subaru WRX / STI

09/19/2025

SBC 265–400 V8 Headers – Fits 1923–1948 Sprint Car / Hot Rod / Roadster / T-Bucket

Joseph R.

Super excellent quality

I love the headers. The fit is perfect. They also have a very thick flange and it is excellent. The price was unbelievable with total cost being only $ 174.00. The headers were listed from $400 to $600. I don’t know how you can make a profit with such a low price.

SBC 265–400 V8 Headers – Fits 1923–1948 Sprint Car / Hot Rod / Roadster / T-Bucket

09/18/2025

Exhaust Headers for 1995-2001 Toyota Tacoma 2.4L/2.7L L4 2DR RWD

Skyler t.

The product was okay

With flight modification, I was able to make it work

Exhaust Headers for 1995-2001 Toyota Tacoma 2.4L/2.7L L4 2DR RWD

09/17/2025

Cold Air Intake Kit for 2006-2011 Honda Civic DX EX LX EX-L GX 1.8L SOHC 4-Door 2-Door

Great product!

I installed this on my wife’s 2006 Honda civic. The fitment was great, and the performance is stellar! I can tell there is a big difference in performance, as the throttle response increased. This also gave the car more “pep” she runs great and is just overall more responsive with this upgrade.

Cold Air Intake Kit for 2006-2011 Honda Civic DX EX LX EX-L GX 1.8L SOHC 4-Door 2-Door

09/16/2025

Milan T.

test pipes

amazing buy them cheap and makes a night and day difference so fun

Downpipe Exhaust/Test Pipes for 2008-2018 Nissan 370z Infiniti G37 Z34

09/14/2025

Milan T.

test pipes

amazing buy them cheap and makes a night and day difference so fun

Downpipe Exhaust/Test Pipes for Infiniti G37 Z34 and Q50/Q60 Models with 3.7L Engine (does not fit 2.0 or 3.0t models)

09/13/2025

good product

Put this on my MK5 GTI and the turbo spools faster now. The deeper tone is addictive, and the install was straightforward with basic tools.

Works Exactly as Intended

Put this catch can on my ’21 Q60. Install was straightforward, hoses lined up perfectly. Engine feels smoother on acceleration, and I’m confident it’s preventing future carbon buildup.

Great Fit and Sound

Put these on my ’10 G37 Coupe last month. Fitment was spot-on, install went smooth, and no rattles or leaks after a few hundred miles. Noticeable bump in power and a deeper exhaust tone without too much drone.

Installed these on my ’08 G37X over the weekend, and I’m impressed. The fitment was spot-on, no weird gaps or alignment issues. Throttle response feels snappier, and there’s a nice bump in low-end torque. The sound is a bit more aggressive but still daily-driver friendly.

I installed these on my 2012 G37 Coupe. Fitment was decent—took some effort around the steering shaft but nothing crazy. Once installed, the car feels more responsive and definitely pulls harder above 4K RPM. The sound is throatier too, especially at wide open throttle. Paired with a tune, it made a noticeable difference. So far, no leaks or issues.