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2015-2021 WRX & STI Mods

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South Bend Clutch Stage 2 Daily Clutch Kit 2006-2017 WRX

$1,002.38
$1,002.38 - $1,002.38
$1,002.38
$1,033.38
$1,033.38 - $1,033.38
$1,033.38

The South Bend Stage 2 Daily Clutch Kit is the ideal clutch for those of you with basic performance modifications that would otherwise surpass the ...

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ACT XACT Flywheel StreetLite 2006+ WRX

$384.00
$384.00 - $384.00
$384.00
$474.00
$474.00 - $474.00
$474.00

DESCRIPTION The ACT XACT Flywheel StreetLite is designed for the 2006+ Subaru WRX and offers a lightweight, durable upgrade over stock flywheels. P...

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ACT XACT StreetLite Flywheel 2006-2018 WRX

$373.00
$373.00 - $373.00
$373.00
$461.00
$461.00 - $461.00
$461.00

DESCRIPTION The ACT StreetLite Flywheel is designed for the 2006–2018 Subaru WRX and provides a lightweight, durable alternative to stock flywheels...

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Subaru OEM STI Short Throw Shifter 2015+ WRX

$339.95
$339.95 - $339.95
$339.95
$339.95 - $339.95

The factory Subaru OEM STI Short Throw Shifter is available for those of you who want to reduce the shifter throws in your vehicle. Shorter shifter...

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ACT Mod Twin 225 Xtreme Duty Sprung Street Twin Disk Clutch Kit 2004-2021 STI

$2,006.00
$2,006.00 - $2,006.00
$2,006.00
$2,477.00
$2,477.00 - $2,477.00
$2,477.00

DESCRIPTION The ACT Mod Twin 225 Xtreme Duty Sprung Street Twin Disk Clutch Kit for the 2004-2021 STI is engineered for high-powered AWD street car...

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ACT Mod Twin 225 Xtreme Duty Rigid Race Twin Disk Clutch Kit 2004-2021 STI

$2,047.00
$2,047.00 - $2,047.00
$2,047.00
$2,527.00
$2,527.00 - $2,527.00
$2,527.00

DESCRIPTION The ACT Mod Twin 225 Xtreme Duty Rigid Race Twin Disk Clutch Kit for the 2004-2021 STI is built for high-powered AWD racing where aggre...

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ACT Pilot Bearing 2002+ WRX / 2004-2021 STI

$7.00
$7.00 - $7.00
$7.00
$9.00
$9.00 - $9.00
$9.00

DESCRIPTION The ACT Pilot Bearing is a high-quality replacement bushing or bearing designed for the 2002+ Subaru WRX and 2004–2021 STI. Installed i...

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Perrin Ball Shift Knob 2015+ WRX / 2004-2021 STI

$87.75
$87.75 - $87.75
$87.75
$117.00
$117.00 - $117.00
$117.00

COMPATIBILITY 2015+ WRX 2004-2021 STI

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Cusco Braided Stainless Steel Clutch Line 2015-2021 WRX/STI

$112.50
$112.50 - $112.50
$112.50
$125.00
$125.00 - $125.00
$125.00

672 022 CL Using aircraft-grade PTFE stainless, Teflon-inner lined hose, we’ve achieved a design that not only provide performance but also longevi...

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Exedy Stage 3 Hyper Single Metallic Disc Clutch Kit 2004-2021 STI

$1,351.75
$1,351.75 - $1,351.75
$1,351.75
$1,590.33
$1,590.33 - $1,590.33
$1,590.33

Here, you are looking at the Exedy Stage 3 Hyper Single Metallic Disc Clutch Kit. This clutch has a higher torque capacity rating over OEM to suppo...

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OVERTAKE ModKnob Short Weighted Delrin Shift Knob 2008-2026 WRX / 2004-2021 STI

$89.00
$89.00 - $89.00
$89.00
$89.00 - $89.00

The Best of Both Worlds | Overtake ModKnob Weighted Delrin Shift Knobs We all love a good weighted shift knob for the smooth and direct feel they o...

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Perrin Black Reverse Lockout Lever 2004-2021 STI

$52.50
$52.50 - $52.50
$52.50
$70.00
$70.00 - $70.00
$70.00

DESCRIPTION The factory reverse lockout link wears out with high mileage and aggressive shifting, causing a shifter rattle. The Perrin Reverse Lock...

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COBB Stage 1+ Drivetrain Package Weighted Shift Knob 2004-2021 STI

$375.00
$375.00 - $375.00
$375.00
$375.00 - $375.00

DESCRIPTION The Stage 1+ Drivetrain Package Includes: Subaru 6-Speed Front Shifter Bushing; Subaru Rear Shifter Bushing; 6-Speed Double Adjustab...

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COBB Stage 1+ Drivetrain Package Tall Weighted Knob 2004-2021 STI

$375.00
$375.00 - $375.00
$375.00
$375.00 - $375.00

DESCRIPTION The Stage 1+ Drivetrain Package Includes: Subaru 6-Speed Front Shifter Bushing; Subaru Rear Shifter Bushing; 6-Speed Double Adjustab...

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COBB Stage 1+ Drivetrain Package 2004-2021 STI

$375.00
$375.00 - $375.00
$375.00
$375.00 - $375.00

DESCRIPTION The Stage 1+ Drivetrain Package Includes: Subaru 6-Speed Front Shifter Bushing; Subaru Rear Shifter Bushing; 6-Speed Double Adjustab...

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COBB Tuning White w/ Red Ring 6-Speed Knob 2015-2026 WRX / 2004-2021 STI

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

DESCRIPTION The COBB Knob is designed to keep those extended shifting sessions exhilarating. The billet aluminum base is anodized in your choice ...

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COBB Tuning Black w/ Red Ring 6-Speed Knob 2015-2026 WRX / 2004-2021 STI

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

DESCRIPTION The COBB Knob is designed to keep those extended shifting sessions exhilarating. The billet aluminum base is anodized in your choice ...

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COBB Tuning Black w/ Black Ring 6-Speed Knob 2015-2026 WRX / 2004-2021 STI

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

DESCRIPTION The COBB Knob is designed to keep those extended shifting sessions exhilarating. The billet aluminum base is anodized in your choice ...

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Perrin Barrel Shift Knob 2004-2021 STI

$87.75
$87.75 - $87.75
$87.75
$117.00
$117.00 - $117.00
$117.00

Throw Your Weight Around The PERRIN shift knob features a heavyweight, solid steel body that is up to two times the weight of the OEM knob. Heav...

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OVERTAKE Shifter Stop 2015+ WRX

$35.00
$35.00 - $35.00
$35.00
$35.00 - $35.00

Smoother shifting for your daily drive | OVERTAKE Shifter Stop The Subaru Shifter Stop is something your car should have came with from the factory...

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ACT Heavy Duty Performance Street Disc Clutch Kit 2006-2018 WRX

$948.00
$948.00 - $948.00
$948.00
$1,170.00
$1,170.00 - $1,170.00
$1,170.00

DESCRIPTION The ACT Heavy Duty Performance Street Disc Clutch Kit is designed for the 2006–2018 Subaru WRX and combines strong holding power with s...

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ACT Heavy Duty Performance Street Sprung Clutch 2002-2018 WRX

$741.00
$741.00 - $741.00
$741.00
$915.00
$915.00 - $915.00
$915.00

DESCRIPTION The ACT Heavy Duty Performance Street Sprung Clutch for the 2002–2005 Subaru WRX (SB9-HDSS) combines ACT’s popular Heavy Duty pressure ...

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ACT Mod-Twin 225 Heavy Duty Sprung Street Clutch Kit 2006+ WRX

$1,699.00
$1,699.00 - $1,699.00
$1,699.00
$2,097.00
$2,097.00 - $2,097.00
$2,097.00

DESCRIPTION The ACT Mod-Twin 225 Heavy Duty Sprung Street Clutch Kit for 2022+ WRX is engineered for high-powered AWD street cars, combining smooth...

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ACT 6 Pad Sprung Race Clutch Disc 2006+ WRX

$231.00
$231.00 - $231.00
$231.00
$285.00
$285.00 - $285.00
$285.00

DESCRIPTION The ACT 6 Pad Sprung Race Clutch Disc for the 2006+ WRX is designed for high horsepower street and race applications requiring faster s...

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ACT Heavy Duty Race Sprung 4 Pad Clutch Kit 2006+ WRX

$1,226.00
$1,226.00 - $1,226.00
$1,226.00
$1,514.00
$1,514.00 - $1,514.00
$1,514.00

DESCRIPTION The ACT Heavy Duty Race Sprung 4 Pad Clutch Kit for the 2006+ WRX is designed for high horsepower street and race builds that demand st...

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ACT Extreme Race Sprung 6 Pad Clutch Kit 2006+ WRX

$1,304.00
$1,304.00 - $1,304.00
$1,304.00
$1,610.00
$1,610.00 - $1,610.00
$1,610.00

DESCRIPTION The ACT Extreme Race Sprung 6 Pad Clutch Kit for the 2006+ WRX is engineered for high horsepower street and race builds that require ma...

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ACT Mod-Twin 225 Extreme Sprung Street Clutch Kit 2006+ WRX

$1,712.00
$1,712.00 - $1,712.00
$1,712.00
$2,114.00
$2,114.00 - $2,114.00
$2,114.00

DESCRIPTION The ACT Mod-Twin 225 Extreme Sprung Street Clutch Kit for 2006+ WRX is built for high-powered AWD street cars, delivering smooth engage...

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ACT 4 Pad Rigid Race Clutch Disc 2006+ WRX / 2004-2021 STI

$157.00
$157.00 - $157.00
$157.00
$194.00
$194.00 - $194.00
$194.00

DESCRIPTION The ACT 4 Pad Rigid Race Clutch Disc for 2006-2021 WRX and 2004-2021 STI is a high-performance race disc made with premium ceramic fric...

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ACT Mod-Twin 225 Heavy Duty Rigid Street Clutch Kit 2006+ WRX

$1,714.00
$1,714.00 - $1,714.00
$1,714.00
$2,116.00
$2,116.00 - $2,116.00
$2,116.00

DESCRIPTION The ACT Mod-Twin 225 Heavy Duty Rigid Street Clutch Kit for 2006+ WRX blends smooth engagement with quick shifting for high-powered AWD...

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ACT Extreme Race Sprung 4 Pad Clutch Kit 2004-2021 STI

$869.00
$869.00 - $869.00
$869.00
$1,073.00
$1,073.00 - $1,073.00
$1,073.00

DESCRIPTION The ACT Extreme Race Sprung 4 Pad Clutch Kit for 2004-2021 STI features an Xtreme pressure plate and 4-pad spring-centered race disc fo...

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ACT Mod-Twin 225 Extreme Rigid Street Clutch Kit 2006+ WRX

$1,696.00
$1,696.00 - $1,696.00
$1,696.00
$2,094.00
$2,094.00 - $2,094.00
$2,094.00

DESCRIPTION The ACT Mod-Twin 225 Extreme Rigid Street Clutch Kit for 2006+ WRX combines smooth, positive engagement with quick shifting for high-po...

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ACT Mod-Twin 225 Extreme Rigid Race Clutch Kit 2006+ WRX

$1,791.00
$1,791.00 - $1,791.00
$1,791.00
$2,211.00
$2,211.00 - $2,211.00
$2,211.00

DESCRIPTION The ACT Mod-Twin 225 Extreme Rigid Race Clutch Kit for 2006+ WRX is designed for aggressive launches and rapid shifting in high-powered...

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ACT Mod-Twin 225 Heavy Duty Sprung Race Clutch Kit 2006+ WRX

$1,823.00
$1,823.00 - $1,823.00
$1,823.00
$2,250.00
$2,250.00 - $2,250.00
$2,250.00

DESCRIPTION The ACT Mod-Twin 225 Heavy Duty Sprung Race Clutch Kit for 2006+ WRX is built for high-powered AWD applications requiring aggressive la...

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ACT Mod-Twin 225 Extreme Sprung Race Clutch Kit 2006+ WRX

$1,807.00
$1,807.00 - $1,807.00
$1,807.00
$2,231.00
$2,231.00 - $2,231.00
$2,231.00

DESCRIPTION The ACT Mod-Twin 225 Extreme Sprung Race Clutch Kit for 2006+ WRX is designed for aggressive launches and smoother shifting in high-pow...

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ACT Mod-Twin 225 Heavy Duty Rigid Race Clutch Kit 2006+ WRX

$1,802.00
$1,802.00 - $1,802.00
$1,802.00
$2,225.00
$2,225.00 - $2,225.00
$2,225.00

DESCRIPTION The ACT Mod-Twin 225 Heavy Duty Rigid Race Clutch Kit for 2006+ WRX is engineered to handle aggressive launches and rapid shifting in h...

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ACT XACT ProLite Clutch Flywheel 2006+ WRX

$384.00
$384.00 - $384.00
$384.00
$474.00
$474.00 - $474.00
$474.00

DESCRIPTION The ACT XACT Prolite Clutch Flywheel for 2006+ WRX is ACT’s lightest flywheel option, engineered for the lowest inertia and maximum per...

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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!