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2015-2021 WRX & STI Mods

GrimmSpeed Head Gasket Set 2015-2021 WRX

$182.00
$182.00 - $182.00
$182.00
$182.00 - $182.00

DESCRIPTION Feature-packed, these gaskets are a perfect fit for any engine build, from basic refresh to a high horsepower track monster. The GrimmS...

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COBB Tuning Previous Fuel Pressure Sensor Kit to Can Fuel Pressure Sensor Kit 2015-2021 WRX

$135.00
$135.00 - $135.00
$135.00
$135.00 - $135.00

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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COBB Tuning Previous Sensor Kit to Can Flex Fuel Upgrade 2015-2017 WRX

$735.00
$735.00 - $735.00
$735.00
$735.00 - $735.00

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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COBB Tuning Previous Sensor Kit to Can Flex Fuel Upgrade + Fuel Pressure Kit 2015-2017 WRX

$840.00
$840.00 - $840.00
$840.00
$840.00 - $840.00

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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COBB Tuning Can Flex Fuel Upgrade 2015-2017 WRX

$1,035.00
$1,035.00 - $1,035.00
$1,035.00
$1,035.00 - $1,035.00

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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COBB Tuning Previous Sensor Kit to Can Flex Fuel Upgrade 2018-2021 WRX

$735.00
$735.00 - $735.00
$735.00
$735.00 - $735.00

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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Revel GT Carbon Alternator Cover 2015-2021 STI

$256.50
$256.50 - $256.50
$256.50
$270.00
$270.00 - $270.00
$270.00

ENHANCE INTERIOR Enhance the look of the interior with perfectly fitted dry carbon overlays. Using various methods of extensive testing for eac...

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Revel GT Dry Carbon Engine Belt Cover 2008-2014 WRX / 2008-2021 STI

$261.25
$261.25 - $261.25
$261.25
$275.00
$275.00 - $275.00
$275.00

ENHANCE INTERIOR Enhance the look of the interior with perfectly fitted dry carbon overlays. Using various methods of extensive testing for eac...

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Revel GT Dry Carbon Air Intake Cover 2015-2018 WRX/STI

$242.25
$242.25 - $242.25
$242.25
$255.00
$255.00 - $255.00
$255.00

ENHANCE INTERIOR Enhance the look of the interior with perfectly fitted dry carbon overlays. Using various methods of extensive testing for eac...

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GrimmSpeed Black Pulley Cover 2015-2021 WRX

$99.00
$99.00 - $99.00
$99.00
$99.00 - $99.00

DESCRIPTION Our Pulley Cover is precision laser cut and CNC bent from locally-sourced material and each cover receives a durable powdercoat finish....

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GrimmSpeed Black Fender Shrouds 2015-2021 WRX / 2015-2021 STI

$99.00
$99.00 - $99.00
$99.00
$99.00 - $99.00

DESCRIPTION Do away with the flimsy, boring factory fabric shrouds and make your engine bay stand out with the brand new GrimmSpeed Fender Shrouds....

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GrimmSpeed Black Lightweight Crank Pulley 2015-2021 WRX

$149.00
$149.00 - $149.00
$149.00
$149.00 - $149.00

DESCRIPTION The GrimmSpeed Lightweight Crank Pulley reduces the rotational mass of the system, allowing your engine to accelerate and decelerate th...

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Perrin Blue Oil Cap 2002+ WRX / 2004-2021 STI

$61.50
$61.50 - $61.50
$61.50
$82.00
$82.00 - $82.00
$82.00

Replace the ugly yellow plastic OEM oil fill cap with the sexy billet aluminum PERRIN Oil Fill Cap! Complete Your Engine Bay The Perrin Aluminum O...

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COBB Tuning Silver Top Mount Intercooler 2015-2021 WRX

$985.00
$985.00 - $985.00
$985.00
$985.00 - $985.00

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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COBB Tuning Silver Front Mount Intercooler Kit 2015-2021 WRX

$2,625.00
$2,625.00 - $2,625.00
$2,625.00
$2,625.00 - $2,625.00

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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COBB Tuning Black Front Mount Intercooler Kit 2015-2021 WRX

$2,625.00
$2,625.00 - $2,625.00
$2,625.00
$2,625.00 - $2,625.00

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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COBB Tuning Turbo Blanket 2015-2021 WRX

$215.00
$215.00 - $215.00
$215.00
$215.00 - $215.00

EMISSIONS This part is not an emissions-related part and therefore can be used on Emission Controlled Vehicles. DESCRIPTION The COBB Turbo ...

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Perrin Hyper Pink Pulley Cover 2015-2021 WRX

$137.25
$137.25 - $137.25
$137.25
$183.00
$183.00 - $183.00
$183.00

Accessorize the top of your engine and the pulleys with the PERRIN Belt Cover. Choose Red, Black, Neon Yellow, or Hyper Pink to accent your engine ...

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Perrin Neon Yellow Pulley Cover 2015-2021 WRX

$137.25
$137.25 - $137.25
$137.25
$183.00
$183.00 - $183.00
$183.00

Accessorize the top of your engine and the pulleys with the PERRIN Belt Cover. Choose Red, Black, Neon Yellow, or Hyper Pink to accent your engine ...

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Perrin Blue Cam Solenoid Cover 2015+ WRX

$134.25
$134.25 - $134.25
$134.25
$179.00
$179.00 - $179.00
$179.00

Conceal the ugly OEM covers with the PERRIN Cam Solenoid Covers. Made from CNC machined aluminum and anodized black, blue, neon yellow, or red to ...

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Perrin Hyper Pink Intercooler Shroud 2015-2021 WRX

$258.75
$258.75 - $258.75
$258.75
$345.00
$345.00 - $345.00
$345.00

The PERRIN Engine Cover Kit replaces the OEM plastic engine cover, adding color and style to your engine bay. ENGINE DRESS-UP Add a bit of flair a...

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Perrin Neon Yellow Intercooler Shroud 2015-2021 WRX

$258.75
$258.75 - $258.75
$258.75
$345.00
$345.00 - $345.00
$345.00

The PERRIN Engine Cover Kit replaces the OEM plastic engine cover, adding color and style to your engine bay. ENGINE DRESS-UP Add a bit of flair a...

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Perrin Hyper Pink Cold Air Intake 2015-2021 WRX

$371.25
$371.25 - $371.25
$371.25
$495.00
$495.00 - $495.00
$495.00

Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucia...

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Perrin Neon Yellow Cold Air Intake 2015-2021 WRX

$371.25
$371.25 - $371.25
$371.25
$495.00
$495.00 - $495.00
$495.00

Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucia...

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Perrin Oil Cooler Kit 2015-2021 WRX

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

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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Garrett Top Mount Intercooler 2015-2021 WRX

$871.25
$871.25 - $871.25
$871.25
$1,045.49
$1,045.49 - $1,045.49
$1,045.49

The Garrett direct fit Subaru WRX charge air cooler boasts a 70% larger core than stock and supports up to 530 horsepower. Optimized end tanks impr...

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Compressive Tuning Carbon Fiber Manifold Cover 2015-2021 WRX

$399.00
$399.00 - $399.00
$399.00
$399.00 - $399.00

Description Compressive Tuning is proud to present into its ever expanding hand-crafted product lineup, the EngineArt series carbon fiber d...

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TurboXS Front Mount Intercooler Kit Wrinkle Black 2015-2021 WRX

$1,504.94
$1,504.94 - $1,504.94
$1,504.94
$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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SuperPro Billet Pitch Stop Mount 2002-2026 WRX/ 2004-2021 STI

$149.99
$149.99 - $149.99
$149.99
$149.99 - $149.99

SuperPro control arms are an easy to install replacement/upgrade suspension part. Fixing many of the downfalls and issues associated with OE and ot...

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COBB Tuning Airbox 2019-2021 STI

$290.00
$290.00 - $290.00
$290.00
$290.00 - $290.00

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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COBB Tuning Fuel Pressure Regulator for Fuel Rail Kit 2008-2021 STI

$380.00
$380.00 - $380.00
$380.00
$380.00 - $380.00

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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COBB Tuning Fuel Rail Line Kit 2008-2021 STI

$595.00
$595.00 - $595.00
$595.00
$595.00 - $595.00

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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COBB Tuning Hot Pipe Kit 2015-2021 STI

$475.00
$475.00 - $475.00
$475.00
$475.00 - $475.00

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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COBB Tuning Cold Pipe Kit 2015-2021 STI

$475.00
$475.00 - $475.00
$475.00
$475.00 - $475.00

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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COBB Tuning Silver Front Mount Intercooler Kit 2015-2021 STI

$2,435.00
$2,435.00 - $2,435.00
$2,435.00
$2,435.00 - $2,435.00

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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COBB Tuning Nexgen Stage 2 Redline Carbon Fiber Power Package 2015-2021 STI

$3,603.00
$3,603.00 - $3,603.00
$3,603.00
$3,680.00
$3,680.00 - $3,680.00
$3,680.00

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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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!