Axleback (4") - Subaru WRX/STI VA [2015-2021]


$455.00 USD

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Great fitment and quality, just like our popular axleback system for the Subaru WRX/STI VA. But this 4" version is for those who seek for a more aggressive styling.

*This product does not work with OEM Factory SPT Midpipe.
* This product are not interchangeable with Sports Touring Catback Exhaust.
Click here for more info


Part Number  Tip Options
RO-TSVA-S4 Stainless Single Wall
RO-TSVA-D4 Stainless Double Wall
RO-TTVA-S4 Burnt Stainless Single Wall
RO-TTVA-D4 Burnt Stainless Double Wall

Year / Make / Model
  • 2015-2021 Subaru WRX/STI (VA)
  • Direct bolt-on easy installation to the factory OEM or Remark mid Y-pipe (Please note : this product will NOT fit aftermarket exhaust system)
Exhaust Type  Axle Back Exhaust Bolt on 2pc 
Piping Diameter 2.5inch, 16 gauge, mandrel bent pipe
Tip Diameter
  • 4inch tip design slant style tips with 
  • Sold in pairs (4 tips total)
Piping Material  T304 stainless steel
Tip Material T304 stainless steel
Welding T304 stainless steel
Weight  Hand crafted high quality tig welding
Weight  Optimal weight reduction from the factory mufflers
⚠️ WARNING: California Prop 65
Cancer & Reproductive Harm

- Free Shipping to Continental US (Lower 48 States)
- REMARK Limited Warranty

** Eligible for purchases direct from
** Excludes taxes and duties on international orders
** No Returns or Exchanges accepted 
** Read disclaimer before purchasing: Click here to read

Customer Reviews

Based on 4 reviews
Lewis Livingstone
Absolutely amazing

I ordered the 3.5 single wall stainless.I couldn’t be more happy with the sound it gave my 2017 STI! Install was super easy, fitting was spot on! I was wondering if it would be to loud or to high pitch but the sound is just a perfect level and the Subaru low purr just brings this car alive! I am a journeyman Ironworker and have seen thousands of welds and these welds are done to almost perfection! Highly recommended.


Seriously no bullshit this is amazing. You can’t beat the price, sound, and quality for a 4 inch double wall. Install was a breeze took about 45 minutes. Definitely looks more aggressive than stock. Highly suggest if you are looking for an axle back.

Tom Coz
Unleash the Rumble!!!

Picked up the 4” single-wall muffler delete w/ SS tips for my STI. Perfect! The STI should sound like this from the factory. Driving my car is so much more fun now! Fitment is really good. 4” tips fill out the exhaust openings perfectly with small gap all the way around. Might play with my hangers a bit more to get both sides more even but Im anal about those types of things. Overall, it’s a no-brainer, especially at the price point Remark is offering! Might have to look at the Remark mid pipe next...

Great Quality and Sound!

Bought these single wall axle back exhaust for my '19 STI. And the only thing I need to say is wow! The welds and quality are amazing! The car sounds fantastic and is a pure joy to drive. Looking to get the resonated mid pipe sometime in the near future to complete the setup.

Had Nameless on my 15 WRX and the quality of the Remarks blow theirs out the water!

I recommend anyone looking for quality exhaust parts for their WRX or STI to get the Remarks! I know I will be a returning customer for life! Keep up the great work Remark!