This is the first mod I did to my 2020 STI. I did some research and watched a few other videos online to give myself a better idea of which manufacturers I wanted to try.
I opted for the Extreme version because I wanted the tone to be as raw and unfiltered as possible without voiding my warranty. I have no regrets, this exhaust sounds amazing, the Extreme was exactly what I was looking for.
Sounds great on the car and it was easy to put on.
I've had almost 5 exhausts on my car and two of them being a extreme with and without blue tips. I just had to go back my extreme cbe nothing else sounds like it. Can't say enough about this exhaust, bring on the exhaust tickets.
Install took around 1 hour on ramps, significant improvement over stock, great welds. Moderately louder when starting cold, surprisingly quiet at idle.
Wide open throttle the exhaust has a pretty nice deep tone and not excessively loud. Exhaust does drone a bit, but expected with no res/mufflers.
vband clamps piece most of the exhaust together with two bolts connecting the mid pipe to the cat.
No instructions with the packaging, only confusion I had was the order of the three gaskets and if anything needed to be recycled.
Super high quality, looks amazing, and was able to install it by myself. It sounds CRISP. Can't complain. Thank God for ETS and their amazing products! Would definitely buy from them again!
The ETS Cat-back exhaust for the 2015-2018 WRX is a made right here in our facility. This exhaust features a true 3.0 all the way through mid-pipe that connects to the rear section splitting into two 3" pipes and finished off with quad 3.5" tips. We use V-band connections on all connections (except the factory 2 bolt) for a leak proof seal (no gaskets to blow out or replace!).
- True 3.0" All The Way From Mating Flange To Muffler Tips (adapter included to fit stock downpipe if needed)
- V-Band Connections For a Leak Proof Seal
- Quad 3.5" Double Wall SS Tips
- 41lbs (10lbs – midpipe, 7lbs – y-pipe, 24lbs axle back)
*** Please note the blue tips will fade over time. This is common on all blue tipped exhaust systems.
QUESTIONS & ANSWERSAsk a Question
Will this ETS CATBACK work with the INVIDIA CATLESS DOWNPIPE?
Yes, it will
I was wondering if the ETS SUBARU WRX/STI 2015+ CATBACK EXHAUST SYSTEM fit a 2019
The catbacks do fit the 19+
Will this fit the 2020 STI as well?
We haven't had confirmed fitment on the 2020 yet but it should as I don't think they made any significan't changes to the bumper or chassis.
Is there anyways to just purchase the axle back muffler portion? I have an ets y and mid pipe and looking to get the mufflers
Yes we list the rear section of the catback in the exhaust section of our website.
one of my clamps fell off of my WRX 2018, is there a way I could get a replacement?
Yes, we have the T-Bolt clamps available separate on our website.
Is this legal for street use? What’s the current decimal levels?
This is for offroad use. There are a lot of variants that dictate volume
Which combination do you recommend to avoid drone? Car is a 2019 STI and sees a lot of road trips.
Resonators and mufflers are a must then!
Will the full exhaust system fit the 2019 Subaru wrx sti , and if so will it need a tune ?
The catback will bolt straight up. No tune needed if the cat remains in place.
Do you guys offer military discount? If so how do i go about getting it on my order
I'm considering both your j-pipe and catback exhaust for my 2017 WRX. Have you considered offering both as a turbo back system with the 2-bolt flange replaced with a v-band? With all the other connections being v-bands, it would be great to eliminate that last bolted/gasketed connection.
We use the 2-bolt to make sure our Jpipe can pair with a stock catback, and our catback can pair with a stock Jpipe. If you purchase both of those parts it would be considered a "turbo back system.
Do i need a separate adapter to bolt this cat back on to my stock Sti downpipe?
https://www.extremeturbosystems.com/collections/15-19-sti-exhaust-systems/products/grimmspeed-subaru-downpipe-to-3in-catback-adapter This is what you are looking for.
Do the tips only come double wall? Really wanna run a full ETS J-Pipe to Catback/Turboback, but don’t like double walled tips.
We only do the double wall on the Subaru exhausts.
Compatible with 2019 sti ?
Yes, the catback is.
Will this exhaust require a tune? Can I run it with no issues after install?
No tune required if the factory catalytic converter remains in place. To really benefit from it, we do suggest getting the tune.
is the exhaust full titanium and how much will the hp increase?
The exhaust is Stainless Steel.
I have a ETS full cat-back on my 2017 wrx with mufflers and I am looking to see if I can buy just the axel-back portion to get rid of the mufflers. Is that something I can do or do I have to buy the full new cat-back?
Sounds great but will this increase my hp? I currently have stock exhaust.
Absolutely, anytime you can free up exhaust flow in a turbo car you are going to have better spool and be able to make power easier.
What is the difference in the ETS Catback Extreme with resonator and without? Which is more loud?
Volume difference will be minimal, though the resonated is likely quieter. The resonator really just helps to reduce freeway droning.