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ETS Extreme Catback Exhaust System w/Blue Tips (Part Number: )
ETS Extreme Catback Exhaust System w/Blue Tips (Part Number: )
ETS Extreme Catback Exhaust System w/Blue Tips (Part Number: )
ETS Extreme Catback Exhaust System w/Blue Tips (Part Number: )
ETS Extreme Catback Exhaust System w/Blue Tips (Part Number: )
ETS Extreme Catback Exhaust System w/Blue Tips (Part Number: )
ETS Extreme Catback Exhaust System w/Blue Tips (Part Number: )
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ETS Extreme Catback Exhaust System w/Blue Tips (Part Number: )
ETS Extreme Catback Exhaust System w/Blue Tips
Subaru WRX/STI 2015+

Features & Product Details

Extreme Turbo Systems is a company collectively ran by car enthusiasts who drive some of the fastest cars stateside. With that said, they know what it takes to design an exhaust system to make more power and performance. This is the ETS Extreme Cat-Back Exhaust System that takes a car that already sounds amazing from the factory, and makes it sound more aggressive.

This exhaust system features smooth mandrel bends that allow exhaust gasses to escape easier because the pipes limit turbulence under acceleration. The result is more horsepower, more torque, and because the piping diameter has been increased to 3" you will have improvements in both sound and throttle response. 

ETS has fabricated this exhaust system from 304 stainless steel and exhaust hangers have been welded onto the OEM locations to make this system a direct bolt-on without the need for further alterations to the body or chassis for fitment. This exhaust will also come with quad 3.5" blue exhaust tips, as well as a set of v-band clamps, gasket, and the rest of the required hardware required to complete the installation. 


Brand: ETS
Exhaust Orientation: Straight Exit
Installation Hardware Included: Yes
Piping Coating: No
Piping Flex Joint: No
Piping ID: 3.00in
Piping Material: 304 Stainless Steel
Piping Taper: No
Silencer Included: No
Tip Material: Stainless Steel
Tip Qty: 4
Tip Shape: Round
Tip Size: 3.50in
Mfgr. Warranty: Limited Lifetime
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.



5 Reviews
5 out of 5 Stars
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Customer Photos and Videos
ETS Extreme Catback Exhaust System w/Blue Tips ( Part Number: 400-35)
Amazing exhaust! 2 months ago
5out of 5stars

This exhaust took me less than an hour to do both the uninstall of stock and install of the ETS extreme car-back. Super easy. Shipping was fast and great, but most importantly. The exhaust sounds incredible. I personally don’t think that it’s too loud, but it does give my WRX a nice deep rumble. I will post a video soon. My entire car is stock except this exhaust and some cosmetic upgrades so the sound isn’t affected by an aftermarket downpipe or anything else.
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Amazing quality build, loudest exhaust 1 year ago
5out of 5stars

This ETS exhaust is of very high quality and craftsmanship! The blue tips look so cool! If you are wanting one of the loudest catback exhausts look no further! With no resonator or mufflers and having an Invidia catted downpipe, this exhaust makes my STI scream! This exhaust is loud inside as well, but it's definitely bearable for me as my daily driver STI! Highly recommend this great quality exhaust!
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2 of 2 people found the following review helpful
Rawest sounding exhaust for an STI 2 years ago
5out of 5stars

If your single, don't have kids, and want the most aggressive sounding rumble coming from your STI than this is the exhaust to get. I previously had a Cobb turboback exhaust but after a couple months, it seemed bland and boring to my ears. The excitement I once got was just not there anymore. I started to do some research on youtube, nasioc, iwsti, etc and came across this. Once I heard it I knew I had to have it and jumped at the opportunity during the black Friday sale. I received the package within 2 days of ordering and installed it. Upon starting the STI, I kid you not it sounded like an explosion. With a Cobb downpipe, this setup is extremely loud and aggressive especially on cold starts. Your neighbors might not like you after you install this but, racecar right? All in all get this exhaust if you want to truly unleash the rumble in your STI
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Actual Review 2 years ago
5out of 5stars

Seeing that the only review is just talking about Rally Sport Direct and the way they ship there packages I will talk about the actual exhaust. I've had it on my 17 STI for almost a week. Is it loud yes! Can you make it quieter and not as loud during normal driving? Of course. I like the fact that it is only loud when you want it to be and really step on the gas and get into boost! I am learning every day the different RPM shifts to make it not as loud so I don't have to worry about attracting unwanted attention. Even cruising at 40-50MPH it's actually kind of quiet and the drone isn't noticeable all that much. Once you downshift and step on the gas is when it comes alive! Getting into boost and hitting it in the 4th-5th gear pulls is really the loudest it gets which is still bearable for the pulls that most of us do with are Subie's. If your not crazy about the loudness you can always add a resonator or muffler but to me that defeats the purpose and point of this system. I wanted something loud then all the others. Something that not many people had. I wanted to be different at this exhaust has made me accomplish that! I also feel better throttle response coming from and Invidia N1. Also the Invidia rattled, this does not. I do recommend it more so for the STI then the WRX only because with the WRX it is more higher pitched and Raspy. With the STI you still get that DEEP RUMBLE.
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Amazing Experience!  2 years ago
5out of 5stars truly knows how to treat their customers. I couldn't be happier with my purchase and the experience with the buying process. I ordered my ETA extreme catback system on Monday morning, I got a tracking number that evening. My package arrived Wednesday afternoon and the packaging was the best I have ever seen. You could of dropped this thing off of a 3 story building and it would of been fine. I highly recommend RALLYSPORTDIRECT.COM and ETS.
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  • Q: fitment  TAresco4 months ago

    Will this fit a 2019 Sti some websites only show it fitting up to 2018 and one said 2017
  • Q: ETS Extreme Cat Back Fitment  crowdkiller_sti6 months ago

    Will this bolt up to the OEM downpipe or will I have to have an aftermarket downpipe as well?
  • Q: fitment  keoni937 months ago

    Would this fit on a 2009 wrx hatchback with a grimspeed limited catted downpipe
  • Q: Ets  Samory7 months ago

    Does the ets catback replace the resenator on a 2016 sti