2015-2021 Subaru STI

The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most ...

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

The wait is over! Extreme Turbo Systems is proud to release our new Subaru STI V2 MaxFlow Exhaust Header for the 2004+ Subaru STI. We designed our ...

The ETS Subaru STI Turbo Kit is one of the most complete kits on the market utilizing optimal intercooler pipe routing and a larger ported s-cover ...

This is handmade here in the USA at Extreme Turbo Systems. This will bolt up with a 3.0"-4.0" ETS intercooler and requires no additional trimming o...

This piping kit is the best on the market for relocating the factory Subaru intercooler. The factory intercooler location allows for excessive heat...

This piping kit is used to convert your stock turbo ETS FMIC kit to work with the ETS rotated turbo kit. This kit won't work on any o...

Best TMIC on the market! Extreme Turbo Systems has designed a direct bolt on top mount intercooler for the 08-21 Subaru STI. This intercooler featu...

ETS now offers the catback rear secion separately if you're looking to change up your ETS 2015-2021 WRX/STI exhaust system!  Extreme - No Muffler...

This piping kit is the best on the market for relocating the factory Subaru intercooler. The factory intercooler location allows for excessive heat...

The Extreme Turbo Systems 2015+ Subaru STI Twin Scroll Turbo Kit is designed to give you the broadest powerband without sacrificing performance by ...

The ETS Axle-back exhaust for the 2015-2021 WRX and STI utilizes a full stainless steel construction. The axle back is 2.5" that mates to the stoc...

The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most ...

This piping kit is the best on the market for relocating the factory Subaru intercooler. The factory intercooler location allows for excessive heat...

This piping kit is the best on the market for relocating the factory Subaru intercooler. The factory intercooler location allows for excessive heat...

Tired of heat soak? We don't blame you!   It's time to upgrade to an intercooler that is designed specifically for the 2015+ WRX with performance i...

The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most ...