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2015-2021 WRX STI Mods

GrimmSpeed Red Lightweight Battery Tiedown 2002+ WRX / 2004-2021 STI

$41.00 - $41.00
$41.00
$41.00 - $41.00
$41.00

DESCRIPTION Here, you are looking at the GrimmSpeed Lightweight Battery Tiedown. This is a great way to improve the looks and aesthetics of your en...

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GrimmSpeed Black Lightweight Battery Tiedown 2002+ WRX / 2004-2021 STI

$41.00 - $41.00
$41.00
$41.00 - $41.00
$41.00

DESCRIPTION Clean up that engine bay and show your GrimmSpeed pride with our newly-designed Subaru Battery Tiedown. Laser cut, then CNC bent and po...

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GrimmSpeed Neon Green Fender Shrouds 2015-2021 WRX/STI

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

DESCRIPTION The GrimmSpeed Fender Shrouds have been designed to fill in the unsightly factory gap between the insides of your front fenders, and th...

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GrimmSpeed Black Fender Shrouds 2015-2021 WRX/STI

$94.00 - $94.00
$94.00
$94.00 - $94.00
$94.00

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 Red Fender Shrouds 2015-2021 WRX/STI

$94.00 - $94.00
$94.00
$94.00 - $94.00
$94.00

DESCRIPTION The GrimmSpeed Fender Shrouds have been designed to fill in the unsightly factory gap between the insides of your front fenders, and th...

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GrimmSpeed Neon Green Radiator Shroud 2015-2021 WRX/STI

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

DESCRIPTION The GrimmSpeed Radiator Shroud has been designed to improve the overall cooling efficiency of your vehicle by channeling the incoming a...

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GrimmSpeed Black Radiator Shroud 2015-2021 WRX/STI

$94.00 - $94.00
$94.00
$94.00 - $94.00
$94.00

DESCRIPTION The GrimmSpeed Radiator Shroud for the 2015-2021 Subaru WRX/STI is made from CNC laser cut and bent aluminum and covered in a very dura...

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GrimmSpeed Red Radiator Shroud 2015-2021 WRX/STI

$94.00 - $94.00
$94.00
$94.00 - $94.00
$94.00

DESCRIPTION The GrimmSpeed Radiator Shroud has been designed to improve the overall cooling efficiency of your vehicle by channeling the incoming a...

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GrimmSpeed Red Pulley Cover 2015-2021 WRX

$94.00 - $94.00
$94.00
$94.00 - $94.00
$94.00

DESCRIPTION The GrimmSpeed Pulley Cover is a great way to improve the aesthetics of your engine bay by replacing the simple OEM cover that is plast...

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GrimmSpeed Black Pulley Cover 2015-2021 WRX

$94.00 - $94.00
$94.00
$94.00 - $94.00
$94.00

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

$204.25 - $204.25
$204.25
$204.25 - $204.25
$204.25

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

$218.50 - $218.50
$218.50
$218.50 - $218.50
$218.50

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 Fuse Box Cover 2008-2021 WRX/STI

$114.00 - $114.00
$114.00
$114.00 - $114.00
$114.00

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 Carbon Alternator Cover 2015-2021 STI

$218.50 - $218.50
$218.50
$218.50 - $218.50
$218.50

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 Electronic Boost Control Cover 2008-2021 STI

$58.00 - $58.00
$58.00
$58.00 - $58.00
$58.00

DESCRIPTION We decided on a subtle design for this cover that mimics the “vent” styling on our matching GrimmSpeed Alternator Cover. Is it made fro...

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GrimmSpeed Red Alternator Cover 2002-2014 WRX / 2004-2021 STI

$94.00 - $94.00
$94.00
$94.00 - $94.00
$94.00

DESCRIPTION Tired of being teased for your corroded alternator and boring engine bay? Step your Alternator Cover game up; GrimmSpeed has just what ...

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GrimmSpeed Black Alternator Cover 2002-2014 WRX / 2004-2021 STI

$94.00 - $94.00
$94.00
$94.00 - $94.00
$94.00

DESCRIPTION Tired of being teased for your corroded alternator and boring engine bay? Step your Alternator Cover game up; GrimmSpeed has just what ...

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GrimmSpeed Neon Green Alternator Cover 2002-2014 WRX / 2004-2021 STI

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

DESCRIPTION Tired of being teased for your corroded alternator and boring engine bay? Step your Alternator Cover game up; GrimmSpeed has just what ...

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OLM LE Dry Carbon Fiber Fuse Box Cover 2015-2021 WRX/STI

$132.00
$132.00 - $132.00
$132.00
$112.20
$112.20 - $112.20
$112.20

DESCRIPTION The OLM LE Dry Carbon Fiber Fuse Box Cover was hand crafted with great attention to detail. Each piece is cared for and goes through a ...

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Perrin Red Battery Tie Down 2002+ WRX / 2004-2021 STI

$82.00
$82.00 - $82.00
$82.00
$57.40
$57.40 - $57.40
$57.40

DESCRIPTION The Perrin Battery Tie Down is a quick and affordable upgrade for your Subaru. Batteries are essential for many of your vehicles functi...

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Perrin Black Battery Tie Down 2002+ WRX / 2004-2021 STI

$82.00
$82.00 - $82.00
$82.00
$57.40
$57.40 - $57.40
$57.40

DESCRIPTION The Perrin Battery Tie Down is a quick and affordable upgrade for your Subaru. Batteries are essential for many of your vehicles functi...

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Perrin Neon Yellow Battery Tie Down 2002+ WRX / 2004-2021 STI

$88.00
$88.00 - $88.00
$88.00
$61.60
$61.60 - $61.60
$61.60

DESCRIPTION The Perrin Battery Tie Down is a quick and affordable upgrade for your Subaru. Batteries are essential for many of your vehicles functi...

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Perrin Blue Battery Tie Down 2002+ WRX / 2004-2021 STI

$82.00
$82.00 - $82.00
$82.00
$57.40
$57.40 - $57.40
$57.40

DESCRIPTION The Perrin Battery Tie Down is a quick and affordable upgrade for your Subaru. Batteries are essential for many of your vehicles functi...

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Perrin Pink Battery Tie Down 2002+ WRX / 2004-2021 STI

$88.00
$88.00 - $88.00
$88.00
$61.60
$61.60 - $61.60
$61.60

DESCRIPTION The Perrin Battery Tie Down is a quick and affordable upgrade for your Subaru. Batteries are essential for many of your vehicles functi...

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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!