The ETS Axle-back exhaust for the 2015+ WRX and STI utilizes a full stainless steel construction. The axle back is 2.5" that mates to the stock 2 bolt flange. All gaskets are included to aid in ease of installation. This is the easiest way to get a little bit more noise and performance out of your WRX or STi.
- 2.5" SS Piping
- Includes Gaskets
- Quad 3.5" Double Wall tips
- Easy Installation
- Available with or without mufflers
- Increased Performance and Sound
- Lifetime Warranty
QUESTIONS & ANSWERSAsk a Question
Hello! I have a 2015 Sti and I already own the 3” ets cat back model but it’s the not extreme version.. I was wondering if I order just the extreme axel back version if I can just switch off the ones I have with the mufflers now to the extreme version.. is there a big difference in sound as well? I want to go as loud as possible without actually straight piping it. thank you!
Make sure to purchase from this link, not the axleback link. The axleback link will have a 2-bolt flange, where the catback has a 3.0" vband connection. If you want loud, go with the extreme version!
Does it require a tune?
Nope! No tuning required for an axleback.
Do you plan to offer a version compatible with the 2019 STI exhaust? I love your products but don’t really want to buy a whole catback system right now. Thanks!
The flange location and flange is different on the axle back unfortauntely. You can order the mid pipe conversion kit below to make it fit or you can order a complete catback and replace the whole catback.
Will this fit the stock y pipe of a 2015 sti?
Will it fit a 2019 sti?
Our axleback system does not fit the 2019 STI. However, our catback system fits with no issues. https://www.extremeturbosystems.com/collections/15-19-sti-exhaust-systems/products/ets-subaru-sti-2015-catback-exhaust-system