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2015-2021 WRX STI Mods

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Koyorad Aluminum Racing Radiator 2008-2021 WRX/STI

$471.30
$471.30 - $471.30
$471.30
$399.00
$399.00 - $399.00
$399.00

The Hyper V-Core Series is the newest to the Koyorad | Koyo All Aluminum Racing Radiator line up. An engine's cooling system in many newer vehicles...

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Perrin Intercooler Core 2015-2021 WRX/STI

$1,111.00
$1,111.00 - $1,111.00
$1,111.00
$833.25
$833.25 - $833.25
$833.25

Replacement Intercooler and Bumper Beam for the PERRIN Front Mount Intercooler Kits!

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Perrin Front Mount Intercooler Kit 2015-2021 STI

$2,822.00 - $2,940.00
$2,822.00 - $2,940.00
$2,822.00
$2,116.50 - $2,205.00
$2,116.50 - $2,205.00
$2,116.50

PERRIN Front Mount Intercooler Kits are ideal for those who want to get the most out of their turbocharged Subaru. Add power and a bold new look al...

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GrimmSpeed Red Charge Pipe Kit 2015-2021 WRX

$310.00
$310.00 - $310.00
$310.00
$279.00
$279.00 - $279.00
$279.00

DESCRIPTION The GrimmSpeed Top Mount Intercooler Charge Pipe Kit is a redesigned performance upgrade over the OEM plastic unit that is restrictive ...

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GrimmSpeed Top Mount Intercooler Kit 2015-2021 WRX

$899.00 - $999.00
$899.00 - $999.00
$899.00
$809.10 - $899.10
$809.10 - $899.10
$809.10

DESCRIPTION This is the GrimmSpeed Top Mount Intercooler. Once you start performing modifications that add more horsepower and more boost, eventual...

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GrimmSpeed Front Mount Intercooler Kit 2015-2021 WRX

$1,639.00 - $1,749.00
$1,639.00 - $1,749.00
$1,639.00
$1,475.10 - $1,574.10
$1,475.10 - $1,574.10
$1,475.10

DESCRIPTION The GrimmSpeed Front Mount Intercooler Kit from GrimmSpeed has been designed with a great balance of low-pressure drop and high-tempera...

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GrimmSpeed Top Mount Intercooler Kit 2002-2007 WRX / 2004-2021 STI

$749.00 - $799.00
$749.00 - $799.00
$749.00
$674.10 - $719.10
$674.10 - $719.10
$674.10

DESCRIPTION This is the GrimmSpeed Top Mount Intercooler. Once you start performing modifications that add more horsepower and more boost, eventual...

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GrimmSpeed Front Mount Intercooler Kit 2015-2021 STI

$1,639.00 - $1,749.00
$1,639.00 - $1,749.00
$1,639.00
$1,475.10 - $1,574.10
$1,475.10 - $1,574.10
$1,475.10

DESCRIPTION The GrimmSpeed Front Mount Intercooler Kit from GrimmSpeed has been designed with a great balance of low-pressure drop and high-tempera...

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ETS Chassis Support Brace 2015-2021 STI

$249.00 - $249.00
$249.00
$249.00 - $249.00
$249.00

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...

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ETS Rotated Piping Kit 2015-2021 STI

$795.00 - $830.00
$795.00 - $830.00
$795.00 - $830.00
$795.00

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

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ETS Rotated Intercooler Piping Conversion Kit 2015-2021 STI

$245.00 - $495.00
$245.00 - $495.00
$245.00 - $495.00
$245.00

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...

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ETS Top Mount Intercooler 2008-2021 STI

$695.00 - $895.00
$695.00 - $895.00
$695.00 - $895.00
$695.00

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...

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ETS Titanium Stock Turbo Piping Kit 2015-2021 STI

$1,495.00 - $1,575.00
$1,495.00 - $1,575.00
$1,495.00 - $1,575.00
$1,495.00

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

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ETS Titanium Rotated Piping Kit 2015-2021 STI

$1,495.00 - $1,575.00
$1,495.00 - $1,575.00
$1,495.00 - $1,575.00
$1,495.00

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

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ETS Stock Turbo Piping Kit 2015-2021 STI

$795.00 - $830.00
$795.00 - $830.00
$795.00 - $830.00
$795.00

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

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ETS Front Mount Intercooler 2015-2021 WRX/STI

$759.00 - $1,159.00
$759.00 - $1,159.00
$759.00 - $1,159.00
$759.00

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...

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TurboXS Front Mount Intercooler Kit Wrinkle Red 2015-2021 WRX

$1,956.42 - $1,956.42
$1,956.42
$1,956.42 - $1,956.42
$1,956.42

The TurboXS 2015+ Subaru WRX Front Mount Intercooler Kit might be the single best modification you can do to your 2015-2016 WRX.  One of the bigges...

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TurboXS Front Mount Intercooler Kit Wrinkle Black 2015-2021 WRX

$1,956.42 - $1,956.42
$1,956.42
$1,956.42 - $1,956.42
$1,956.42

The TurboXS 2015+ Subaru WRX Front Mount Intercooler Kit might be the single best modification you can do to your 2015-2016 WRX.  One of the bigges...

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TurboXS Front Mount Intercooler Kit Polished 2015-2021 WRX

$1,956.42 - $1,956.42
$1,956.42
$1,956.42 - $1,956.42
$1,956.42

The TurboXS 2015+ Subaru WRX Front Mount Intercooler Kit might be the single best modification you can do to your 2015-2016 WRX.  One of the bigges...

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GrimmSpeed Top Mount Intercooler Splitter 2015-2021 STI

$247.00
$247.00 - $247.00
$247.00
$222.30
$222.30 - $222.30
$222.30

DESCRIPTION This is the Grimmspeed Splitter that is available for separate purchase. This particular splitter comes with the Grimmspeed Top Mount I...

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GrimmSpeed Front Mount Intercooler Bumper Bar 2015-2021 WRX/STI

$209.00
$209.00 - $209.00
$209.00
$188.10
$188.10 - $188.10
$188.10

DESCRIPTION To help keep chassis deflection at bay and to keep any large dents out of your front fascia we’re offering the GrimmSpeed Bumper Bar as...

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GrimmSpeed Top Mount Intercooler Aluminum Y-Pipe Kit 2004-2021 STI

$178.00
$178.00 - $178.00
$178.00
$160.20
$160.20 - $160.20
$160.20

DESCRIPTION The Grimmspeed Top Mount Intercooler Y-Pipe Kit has been designed to work with factory or aftermarket top mount intercoolers. This is a...

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CSF 2-Row Black Radiator 2008-2021 WRX/STI

$455.00 - $455.00
$455.00
$455.00 - $455.00
$455.00

SPECS: 100% all-aluminum TIG-welded construction New black finish to provide a cleaner look Includes CNC-machined mounting brackets 2-row 42mm ult...

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Process West Intake Manifold Street Version 2002-2014 WRX / 2004-2021 STI

$2,247.00 - $2,247.00
$2,247.00
$2,247.00 - $2,247.00
$2,247.00

The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics ...

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Process West Black Intake Manifold Street Version 2002-2014 WRX / 2004-2021 STI

$2,333.00 - $2,333.00
$2,333.00
$2,333.00 - $2,333.00
$2,333.00

The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics ...

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Process West Intake Manifold Track Version 2002-2014 WRX / 2004-2021 STI

$2,247.00 - $2,247.00
$2,247.00
$2,247.00 - $2,247.00
$2,247.00

The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics ...

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Process West Black Intake Manifold Track Version 2002-2014 WRX / 2004-2021 STI

$2,333.00 - $2,333.00
$2,333.00
$2,333.00 - $2,333.00
$2,333.00

The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics ...

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Process West Intake Manifold 2015-2021 WRX

$1,744.10 - $1,744.10
$1,744.10
$1,744.10 - $1,744.10
$1,744.10

Designed for the MY15+ FA20DIT WRX the Process West ‘DITTO’ (Direct Injection Tubular Original) compromises a mix of billet plenum and cast large b...

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Process West Intake Manifold w/ Port Injection 2015-2021 WRX

$2,087.70 - $2,087.70
$2,087.70
$2,087.70 - $2,087.70
$2,087.70

Designed for the MY15+ FA20DIT WRX the Process West ‘DITTO’ (Direct Injection Tubular Original) compromises a mix of billet plenum and cast large b...

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ETS Front Mount Intercooler Piping Kit 2015-2021 WRX

$795.00 - $1,180.00
$795.00 - $1,180.00
$795.00 - $1,180.00
$795.00

ETS 2015+ Subaru WRX Front Mount Intercooler Piping Kit Only For a complete kit you can add the intercooler seen here. The ETS intercooler piping k...

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Perrin Front Mount Intercooler Kit 2015-2021 WRX

$2,679.00 - $2,789.00
$2,679.00 - $2,789.00
$2,679.00
$2,009.25 - $2,091.75
$2,009.25 - $2,091.75
$2,009.25

Intercooler Construction The Perrin Intercooler Core is 28" long x 9.25" tall x 3.5" deep with a volume of 906.5 cu-in. which gives the Perrin Int...

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Subaru OEM Super Coolant 1 Gallon

$31.16 - $31.16
$31.16
$31.16 - $31.16
$31.16

Formulated for long-lasting corrosion and rust protection for all cooling system components, this prediluted antifreeze/engine coolant prevents the...

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Perrin Oil Cooler Kit 2015-2021 WRX

$569.00 - $1,066.00
$569.00 - $1,066.00
$569.00
$426.75 - $799.50
$426.75 - $799.50
$426.75

WHY YOU WANT THIS In racing conditions engine oil temperature skyrockets. This causes decreased engine performance and reduces the oil's ability to...

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Perrin Black Top Mount Intercooler 2015-2021 WRX

$890.00
$890.00 - $890.00
$890.00
$667.50
$667.50 - $667.50
$667.50

Add a consistent 10+ wheel horsepower with one of the largest Top Mounted Intercoolers on the market! We pushed every dimension to make this the b...

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Perrin Silver Top Mount Intercooler 2015-2021 WRX

$890.00
$890.00 - $890.00
$890.00
$667.50
$667.50 - $667.50
$667.50

Add a consistent 10+ wheel horsepower with one of the largest Top Mounted Intercoolers on the market! We pushed every dimension to make this the b...

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Perrin Oil Cooler Kit 2002-2014 WRX / 2004-2021 STI

$558.00 - $1,040.00
$558.00 - $1,040.00
$558.00
$418.50 - $780.00
$418.50 - $780.00
$418.50

WHY YOU WANT THIS In racing conditions engine oil temperature skyrockets. This causes decreased engine performance and reduces the oil's ability to...

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If you own a Subaru WRX STI, you know you have the perfect platform to craft a masterpiece on wheels. At WRXDaily, we understand that every enthusiast has a vision, and we’re here to offer the WRX STI mods you need to bring yours to life. With products tailored to elevate performance, enhance style, and perfect handling, our curated selection puts endless possibilities at your fingertips. 

No matter what you need, our Subaru WRX STI modifications deliver quality and reliability you can trust. From high-performance upgrades to must-have Subaru STI accessories, we have everything you need to create a car that’s as bold and unique as your passion for driving. Own a 2018 WRX? We offer a variety of 2018 WRX parts designed to fit your specific model. 

With WRXDaily, your Subaru becomes a true reflection of your style and ambition. Browse our selection of WRX STI mods today and start your next build!