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2015-2021 WRX & STI Mods

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Cusco Power Brace Seat Rail Plus 2015-2021 WRX/STI

$261.00
$261.00 - $261.00
$261.00
$290.00
$290.00 - $290.00
$290.00

6A1 492 SP * Set of 2 * Bolt on * Not Certified by SFI / FIA

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Cusco Rear Member Brace 2015-2021 WRX / 2015-2021 STI

$261.00
$261.00 - $261.00
$261.00
$290.00
$290.00 - $290.00
$290.00

6A1 492 RM * Connect right and left rear subframe * Direct OE replacement

COBB Tuning Transmission Cross Member Isolator Kit 2008-2021 WRX/STI

$60.00
$60.00 - $60.00
$60.00
$60.00 - $60.00

Gearbox Cross Member Isolator Mount Kit consists of 4 Bushings. It will re-use the OEM crush tubes. Using this specially formulated Polyurethane ...

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Cusco Rear Sway Bar Brace 2015-2021 STI

$220.50
$220.50 - $220.50
$220.50
$245.00
$245.00 - $245.00
$245.00

6A1 492 RL * Rigid brackets maximize a sway bar effect

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Cusco Front Side Power Brace 2015-2021 WRX

$261.00
$261.00 - $261.00
$261.00
$290.00
$290.00 - $290.00
$290.00

This particular power brace has been designed to connect the bottom of the front suspension together to improve handling and driver feedback under ...

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Cusco Power Brace Rear Trunk Plus 2015-2021 WRX/STI

$274.50
$274.50 - $274.50
$274.50
$305.00
$305.00 - $305.00
$305.00

* Bolt on * Not Certified by SFI / FIA 6A1 492 TP

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Cusco Power Brace Rear Member Side 2008-2021 WRX/STI

$220.50
$220.50 - $220.50
$220.50
$245.00
$245.00 - $245.00
$245.00

687 492 RS * Connect mounting points of Lateral link and Trailing rod

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Cusco Front Side Power Brace 2015-2021 STI

$261.00
$261.00 - $261.00
$261.00
$290.00
$290.00 - $290.00
$290.00

6A1 492 FS * Connect front and rear LCA mounting point

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Cusco Lower Arm Bar 2015-2021 STI

$108.00
$108.00 - $108.00
$108.00
$120.00
$120.00 - $120.00
$120.00

684 475 A * Connect both LCA mounting point

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Cusco Front Cross Member Brace 2015-2021 STI

$360.00
$360.00 - $360.00
$360.00
$400.00
$400.00 - $400.00
$400.00

* Connect front member and LCA mounting point 6A1 492 M

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Cusco Rear End Brace 2015-2021 WRX/STI

$256.50
$256.50 - $256.50
$256.50
$285.00
$285.00 - $285.00
$285.00

6A1 492 RE * Connect right and left rear subframe * Can not be used with OE bumper beam

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Cusco Center Floor Power Brace 2008-2021 STI

$567.00
$567.00 - $567.00
$567.00
$630.00
$630.00 - $630.00
$630.00

692 492 C * Connect Front member, Transmission member and main frame

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Cusco Front Member Brace 2015-2021 WRX/STI

$261.00
$261.00 - $261.00
$261.00
$290.00
$290.00 - $290.00
$290.00

* Connect both front Subframe 6A1 492 FM

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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!