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2015-2021 WRX & STI Mods

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AWE Touring Edition Catback Exhaust w/ Diamond Black Tips 2015-2021 WRX

$1,595.00
$1,595.00 - $1,595.00
$1,595.00
$1,684.21
$1,684.21 - $1,684.21
$1,684.21

BOXER® uncorked: Soundtrack engineered for the EJ25, this is not just a repurposed VA WRX exhaust Proudly engineered, designed, and manufactured i...

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AWE Touring Edition Catback Exhaust w/ Diamond Black Tips 2011-2021 STI

$1,595.00
$1,595.00 - $1,595.00
$1,595.00
$1,684.21
$1,684.21 - $1,684.21
$1,684.21

BOXER® uncorked: Soundtrack engineered for the EJ25, this is not just a repurposed VA WRX exhaust Proudly engineered, designed, and manufactured i...

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RacerX Front Tie Rod Ends 2008-2021 WRX / 2008-2021 STI

$289.00
$289.00 - $289.00
$289.00
$289.00 - $289.00

Proper installation of the Racer X Fabrication adjustable front tie rod end kit for the 2008+ Subaru WRX / STI will allow your vehicle to reduce u...

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AMS Performance Billet Engine Oil Dip Stick 2015-2021 WRX

$84.95
$84.95 - $84.95
$84.95
$84.95 - $84.95
$84.95

Introducing the AMS Performance Subaru Billet Engine Oil Dip Stick, the perfect addition to enhance the look and functionality of your engine bay. ...

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Mishimoto Liquid Chill Synthetic Engine Coolant Premixed

$52.95
$52.95 - $52.95
$52.95
$58.00
$58.00 - $58.00
$58.00

DESCRIPTION: Liquid Chill Synthetic Engine Coolant technology combines an inherently nontoxic propylene glycol base with unique poly organic additi...

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GrimmSpeed Silver V2 Bolt Oil Cap 2002-2026 WRX / 2004-2021 STI

$59.00
$59.00 - $59.00
$59.00
$59.00 - $59.00

DESCRIPTION It’s inevitable, you’ll eventually want to replace your OEM Subaru oil cap. Whether it's leaking, worn out, or just an eyesore, the Gri...

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GrimmSpeed Red V2 Bolt Oil Cap 2002-2026 WRX / 2004-2021 STI

$59.00
$59.00 - $59.00
$59.00
$59.00 - $59.00

DESCRIPTION It’s inevitable, you’ll eventually want to replace your OEM Subaru oil cap. Whether it's leaking, worn out, or just an eyesore, the Gri...

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ACT Heavy Duty Race Sprung 6 Pad Clutch Kit 2006-2026 WRX

$1,254.00
$1,254.00 - $1,254.00
$1,254.00
$1,548.00
$1,548.00 - $1,548.00
$1,548.00

DESCRIPTION The ACT Heavy Duty Race Sprung 6 Pad Clutch Kit for the 2006+ WRX is built for high horsepower street and race applications that demand...

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ACT Heavy Duty Performance Street Sprung Clutch Kit 2006-2026 WRX

$1,204.00
$1,204.00 - $1,204.00
$1,204.00
$1,486.00
$1,486.00 - $1,486.00
$1,486.00

DESCRIPTION This ACT Heavy Duty Performance Street clutch kit for the 2006 and newer WRX combines ACT’s most popular Heavy Duty pressure plate with...

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ACT XACT Prolite Clutch Flywheel 2004-2021 STI

$509.00
$509.00 - $509.00
$509.00
$629.00
$629.00 - $629.00
$629.00

DESCRIPTION The ACT XACT Prolite Clutch Flywheel is designed for 2004–2021 Subaru WRX STI models and is ACT’s lightest flywheel option for maximum ...

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Mishimoto Black Coolant Overflow Tank 2008-2021 WRX / 2008-2021 STI

$233.95
$233.95 - $233.95
$233.95
$257.00
$257.00 - $257.00
$257.00

DESCRIPTION Transform your engine bay with the Mishimoto Coolant Overflow Tank for 2008-2021 STI/WRX. Stock plastic tanks are not only unsightly bu...

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Mishimoto Silver Transmission Cooler 2015-2021 WRX

$398.95
$398.95 - $398.95
$398.95
$439.00
$439.00 - $439.00
$439.00

DESCRIPTION The CVT transmission in the 2015-2021 Subaru WRX is an impressive system, providing smooth and seamless gear changes with the pull of a...

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Mishimoto Black Top Mount Intercooler Kit 2008-2021 STI

$695.95
$695.95 - $695.95
$695.95
$766.00
$766.00 - $766.00
$766.00

DESCRIPTION The Mishimoto Performance Direct-Fit Top-Mount Intercooler for the 2008-2021 Subaru WRX STI is designed to reduce intake temperatures a...

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Mishimoto Black Oil Cooler Kit 2015-2021 STI

$570.95 - $624.95
$570.95 - $624.95
$570.95
$628.00 - $687.00
$628.00 - $687.00
$628.00

DESCRIPTION The Mishimoto Oil Cooler Kit for the 2015-2021 Subaru STI is designed to keep your engine cool and reliable, whether on the street or t...

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Mishimoto Red Silicone Radiator Hose Kit 2015-2021 WRX

$134.95
$134.95 - $134.95
$134.95
$143.00
$143.00 - $143.00
$143.00

DESCRIPTION Ditch the rubber and upgrade to the Mishimoto Silicone Radiator Hose Kit for your 2015 Subaru WRX. This kit includes upper and lower ra...

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Mishimoto Black Plug & Play Aluminum Fan Shroud Kit 2008-2014 WRX / 2008-2015 STI

$359.95
$359.95 - $359.95
$359.95
$396.00
$396.00 - $396.00
$396.00

DESCRIPTION Maximize engine bay space and cooling efficiency with the Mishimoto Plug-N-Play Aluminum Fan Shroud Kit for Subaru WRX/STI. Designed to...

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Mishimoto Polished Plug & Play Aluminum Fan Shroud Kit 2008-2014 WRX / 2008-2015 STI

$334.95
$334.95 - $334.95
$334.95
$368.00
$368.00 - $368.00
$368.00

DESCRIPTION Maximize engine bay space and cooling efficiency with the Mishimoto Plug-N-Play Aluminum Fan Shroud Kit for Subaru WRX/STI. Designed to...

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GrimmSpeed Red Lightweight Battery Mount Kit 2008-2021 WRX / 2008-2021 STI

$109.00
$109.00 - $109.00
$109.00
$109.00 - $109.00

DESCRIPTION Lightweight Batteries are an excellent and inexpensive way to remove weight from your Subaru, which has an OEM battery tipping the scal...

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ACT 4 Pad Rigid Race Clutch Disc 2002-2018 WRX

$147.00
$147.00 - $147.00
$147.00
$182.00
$182.00 - $182.00
$182.00

DESCRIPTION The ACT 4 Pad Rigid Race Clutch Disc for 2002–2017 Subaru WRX is engineered for race-only applications where aggressive engagement and ...

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DBA Street Performance Front Brake Pads 2024-2026 WRX / 2018-2021 STI

$142.00
$142.00 - $142.00
$142.00
$167.82
$167.82 - $167.82
$167.82

DESCRIPTION DBA Street Performance Brake Pads are designed for Subaru drivers who want more from their brakes than standard OE pads. Engineered for...

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Hawk HPS Front Brake Pads 2015-2021 WRX

$176.39
$176.39 - $176.39
$176.39
$195.99
$195.99 - $195.99
$195.99

DESCRIPTION The Hawk HPS front brake pads for the 2015–2021 WRX without EyeSight and equipped with steel calipers are designed to deliver increased...

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Hawk HPS Rear Brake Pads 2004-2017 STI

$126.89
$126.89 - $126.89
$126.89
$140.99
$140.99 - $140.99
$140.99

DESCRIPTION The Hawk HPS rear brake pads for the 2004–2017 STI are designed to improve stopping power and braking consistency for street-driven per...

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Hawk Ceramic Rear Brake Pads 2004-2017 STI

$140.39
$140.39 - $140.39
$140.39
$155.99
$155.99 - $155.99
$155.99

DESCRIPTION The Hawk Ceramic rear brake pads for the 2004–2017 STI deliver quiet, clean, and consistent braking without sacrificing performance. Bu...

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Fuel Injector Clinic 650cc Fuel Injectors 2002-2014 WRX / 2007-2021 STI

$378.00
$378.00 - $378.00
$378.00
$378.00 - $378.00

DESCRIPTION These Fuel Injector Clinic 650cc Top Feed Injectors are built for the 2002-2014 WRX and 2007-2021 STI, offering a dependable increase i...

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Rotora Stainless Steel Front Brake Lines 2018-2021 STI

$101.00
$101.00 - $101.00
$101.00
$101.00 - $101.00

DETAILS Here, you are looking at the Rotora Stainless Steel Front Brake Lines for your 2018-2021 STI. Details:  Sold as a Pair Rear Fitment  ...

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Perrin Neon Yellow Coolant Overflow Tank 2002+ WRX / 2004-2021 STI

$183.60
$183.60 - $183.60
$183.60
$216.00
$216.00 - $216.00
$216.00

DESCRIPTION The Perrin Coolant Overflow Tank for the 2002+ Subaru WRX and 2004–2021 STI is a premium upgrade that replaces the factory plastic tank...

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Perrin Black Coolant Overflow Tank 2002-2026 WRX / 2004-2021 STI

$173.40
$173.40 - $173.40
$173.40
$204.00
$204.00 - $204.00
$204.00

DESCRIPTION The Perrin Coolant Overflow Tank for the 2002+ Subaru WRX and 2004–2021 STI is a premium upgrade that replaces the factory plastic tank...

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Perrin 26mm Front Sway Bar 2015-2021 STI

$285.60
$285.60 - $285.60
$285.60
$336.00
$336.00 - $336.00
$336.00

Upgrade your WRX or STI with a PERRIN Adjustable Front Swaybar for improved handling and performance. This easy suspension upgrade enhances corneri...

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Verus Engineering Pitch Stop Mount 2002+ WRX / 2004-2021 STI

$119.95
$119.95 - $119.95
$119.95
$119.95 - $119.95

DESCRIPTION The Verus Engineering Pitch Stop Mount for the 2002+ Subaru WRX and 2004–2021 STI is designed to reduce engine movement and deliver a m...

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Muteki Red SR48 Open Ended Lug Nuts M12X1.25

$112.00
$112.00 - $112.00
$112.00
$112.00 - $112.00

DESCRIPTION The Muteki SR48 Red Open Ended Lug Nuts (12x1.25) are built for performance and made to stand out. This set of 20 lug nuts is crafted f...

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Muteki Purple SR48 Open Ended Lug Nuts M12x1.25

$151.00
$151.00 - $151.00
$151.00
$151.00 - $151.00

SPECS: 20 pieces set Purple 1 Key Adapter  Open-ended Light weight lug reduces unsprung weight Full stud engagement and can accomodate extended...

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GrimmSpeed Black Front Strut Tower Bar 2015-2021 WRX / 2015-2021 STI

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

DESCRIPTION The GrimmSpeed Front Strut Bar for the 2015-2021 Subaru WRX/STI blends precision engineering with clean aesthetics to deliver serious p...

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Mishimoto X-Line Aluminum Radiator 2008-2014 WRX / 2008-2021 STI

$409.95
$409.95 - $409.95
$409.95
$451.00
$451.00 - $451.00
$451.00

DESCRIPTION Keep your 2008-2014 Subaru WRX or 2008-2021 STI cool and protected with the Mishimoto X-Line Performance Aluminum Radiator. Featuring a...

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Mishimoto Black Silicone Radiator Hose Kit 2015-2021 WRX

$134.95
$134.95 - $134.95
$134.95
$148.00
$148.00 - $148.00
$148.00

DESCRIPTION Ditch the rubber and upgrade to the Mishimoto Silicone Radiator Hose Kit for your 2015 Subaru WRX. This kit includes upper and lower ra...

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Mishimoto Aluminum Coolant Overflow Tank 2008-2021 WRX / 2008-2021 STI

$233.95
$233.95 - $233.95
$233.95
$257.00
$257.00 - $257.00
$257.00

DESCRIPTION Transform your engine bay with the Mishimoto Coolant Overflow Tank for 2008-2021 STI/WRX. Stock plastic tanks are not only unsightly bu...

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Mishimoto Stainless Steel Catback Exhuast 2015-2021 WRX / 2015-2021 STI

$1,326.95
$1,326.95 - $1,326.95
$1,326.95
$1,460.00
$1,460.00 - $1,460.00
$1,460.00

DESCRIPTION Unleash the full potential of your 2015-2021 Subaru WRX/STI with the Mishimoto Performance Cat-back Exhaust. Engineered from precision ...

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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!