Skip to content
CHRISTMAS SAVINGS ARE LIVE!
CHRISTMAS SAVINGS ARE LIVE!

2015-2021 WRX STI Mods

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...

View full details

COBB Tuning Can Fuel Pressure Sensor Kit 2015-2021 WRX

$275.00 - $275.00
$275.00
$275.00 - $275.00
$275.00

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

View full details

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...

View full details

IAG Street Series Air Oil Separator 2015-2021 WRX

$499.99 - $499.99
$499.99
$499.99 - $499.99
$499.99

PROTECT YOUR ENGINE The IAG Air / Oil Separator (AOS) is a smart investment to safeguard and improve your Subaru's performance. Developed ...

View full details

Subaru OEM Oil Drain Plug Crush Gasket 2015-2021 WRX

$1.75 - $1.75
$1.75
$1.75 - $1.75
$1.75

Save 10% Save %

GrimmSpeed Street Transmission Mount 2002+ WRX / 2004-2021 STI

$249.00
$249.00 - $249.00
$249.00
$224.10
$224.10 - $224.10
$224.10

The ALL NEW GrimmSpeed Transmission Mounts are designed to lock down your Subaru's drivetrain and enhance the driving experience, while keeping cab...

View full details
Save 20% Save %

Seibon Carbon Fiber License Plate Frame

$60.00
$60.00 - $60.00
$60.00
$48.00
$48.00 - $48.00
$48.00

Seibon Carbon components are carefully hand-crafted using only the finest materials. Our production team offers superior craftsmanship with over 15...

View full details

COBB Tuning Driveline Bushing Kit 2008-2021 WRX/STI

$165.00 - $165.00
$165.00
$165.00 - $165.00
$165.00

DESCRIPTION Driveline mounts/bushings are installed to provide the driver with improved feel/response from the engine, driveline, and steering comp...

View full details

COBB Tuning Stainless Steel Catback Exhaust 2011-2021 WRX / 2011-2021 STI

$1,565.00 - $1,565.00
$1,565.00
$1,565.00 - $1,565.00
$1,565.00

DESCRIPTION This COBB Stainless Steel Cat-Back Exhaust is a direct bolt on for the 2011-2021 GV and VA Subaru WRX/STI Sedan. ConstructionThe enti...

View full details

COBB Tuning Alignment Package 2015-2021 WRX/STI

$1,770.00 - $1,770.00
$1,770.00
$1,770.00 - $1,770.00
$1,770.00

WHY? This package includes everything you would need to correct suspension geometry and alignment specs when lowering the ride height of your Sub...

View full details

COBB Tuning Adjustable Rear Lower Control Arms 2015+ WRX / 2008-2021 STI

$345.00 - $345.00
$345.00
$345.00 - $345.00
$345.00

DESCRIPTION The Rear Control Arm offers adjustability to dial in camber. The bushings used are also polyurethane, replacing soft factory rubber. ...

View full details
Save 10% Save %

GrimmSpeed Black StealthBox Intake 2015-2021 STI

$359.00
$359.00 - $359.00
$359.00
$323.10
$323.10 - $323.10
$323.10

DESCRIPTION The GrimmSpeed StealthBox Cold Air Intake System is the result of countless invested hours in research and development to provide the p...

View full details

MSP CS Style Gloss Black Front Lip 2018-2021 WRX/STI

$189.00 - $189.00
$189.00
$189.00 - $189.00
$189.00

DESCRIPTION The MSP CS Style Gloss Black Front lip for the 2018-2021 WRX/STI is one of the most aggressive front lips on the market! The front lip ...

View full details
Save 25% Save %

Perrin Carbon Fiber Strut Tower Brace 2015-2021 WRX/STI

$485.00
$485.00 - $485.00
$485.00
$363.75
$363.75 - $363.75
$363.75

Performance During cornering, the Perrin Strut Tower Brace improves chassis rigidity, enhances steering precision under high load conditions, and r...

View full details

MSP Carbon Fiber Roof Spoiler V1 2015-2021 WRX/STI

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

DESCRIPTION The MSP Carbon Fiber Roof Spoiler V1 was designed to upgrade the look and feel of your vehicle's rear end. Made from a glossy and durab...

View full details

COBB Tuning Sway Bar Package 2015-2021 STI

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

WHY? This is one of the first upgrades we recommend when it comes to suspension upgrades. Easy to install in your driveway with immediate results...

View full details
Save 15% Save %

Cusco Front Side Power Brace 2015-2021 WRX

$290.00
$290.00 - $290.00
$290.00
$246.50
$246.50 - $246.50
$246.50

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

View full details
Save up to 8% Save %

Spec-D Tuning Sequential LED Headlights 2015-2021 WRX/STI

$535.71 - $542.86
$535.71 - $542.86
$535.71
$499.00
$499.00 - $499.00
$499.00

DESCRIPTION The Spec-D Tuning Sequential LED Headlights are one of the most popular headlights on the market. Spec-D designed these headlights to g...

View full details

COBB Tuning Stage 1 Drivetrain Package 2004-2021 STI

$285.00 - $285.00
$285.00
$285.00 - $285.00
$285.00

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

View full details

COBB Tuning Daily Driver Suspension Package 2015-2021 STI

$1,250.00 - $1,250.00
$1,250.00
$1,250.00 - $1,250.00
$1,250.00

DESCRIPTION Completely transform the handling and ride quality of your Subaru WRX/STI with the COBB Daily Driver Package! This include our custom...

View full details
Save 25% Save %

Perrin Pitch Stop Mount 2002+ WRX / 2004+ STI

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

DESCRIPTION Under hard acceleration, the drivetrain is being twisted front-to-back from the front axle torque twist. To control this front-to-back ...

View full details

COBB Tuning Reverse Lockout 2004-2021 STI

$125.00 - $125.00
$125.00
$125.00 - $125.00
$125.00

If you've owned an STI for an extended period of time, you may have noticed that the factory reverse lockout pull has developed a slight rattle. ...

View full details
Save 25% Save %

Perrin Top Mount Intercooler Kit 2008-2021 STI

$890.00
$890.00 - $890.00
$890.00
$667.50
$667.50 - $667.50
$667.50

DESCRIPTION The Perrin TMIC is 12% larger than the nearest competitor's core. The large core means less restriction and better cooling capabilities...

View full details

BilletWorkz Matte Black Short Shifter 2015+ WRX

$220.00 - $220.00
$220.00
$220.00 - $220.00
$220.00

This is the BilletWorkz Short Throw Shifter that has been designed to fit the 15-22 WRX, as well as the 18+ Crosstrek. The shifter throws will be r...

View full details
Save 15% Save %

HKS Hipermax G Strut/Spring Combo Kit 2015-2021 STI

$1,690.00
$1,690.00 - $1,690.00
$1,690.00
$1,436.50
$1,436.50 - $1,436.50
$1,436.50

The HKS Hipermax G Suspension Kit was designed for the 15+ Subaru WRX as the ultimate OEM Plus shock and spring set-up in the market. By having a s...

View full details
Save 10% Save %

GrimmSpeed Black Electronic Boost Control Cover 2008-2021 STI

$58.00
$58.00 - $58.00
$58.00
$52.20
$52.20 - $52.20
$52.20

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...

View full details
Save 10% Save %

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

$94.00
$94.00 - $94.00
$94.00
$84.60
$84.60 - $84.60
$84.60

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

View full details
Save 10% Save %

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

$94.00
$94.00 - $94.00
$94.00
$84.60
$84.60 - $84.60
$84.60

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

View full details
Save 10% Save %

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

$99.00
$99.00 - $99.00
$99.00
$89.10
$89.10 - $89.10
$89.10

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

View full details
Save 10% Save %

Stance Adjustable Blue Lower Control Arms V1 25mm Drop 2015-2021 WRX / STI

$517.50
$517.50 - $517.50
$517.50
$465.75
$465.75 - $465.75
$465.75

Rear Lower control Arms are an ideal suspension modification after lowering any WRX/STI or FR-S/BRZ/86. The LCA will allow for proper rear camber a...

View full details
Save 10% Save %

Stance Adjustable Blue Lower Control Arms V2 60mm Drop 2015-2021 WRX / STI

$548.25
$548.25 - $548.25
$548.25
$493.43
$493.43 - $493.43
$493.43

Rear Lower control Arms are an ideal suspension modification after lowering any WRX/STI or FR-S/BRZ/86. The LCA will allow for proper rear camber a...

View full details
Save 10% Save %

Stance Adjustable Red Lower Control Arms V1 25mm Drop 2015-2021 WRX / STI

$517.50
$517.50 - $517.50
$517.50
$465.75
$465.75 - $465.75
$465.75

Rear Lower control Arms are an ideal suspension modification after lowering any WRX/STI or FR-S/BRZ/86. The LCA will allow for proper rear camber a...

View full details
Save 10% Save %

Stance Adjustable Red Lower Control Arms V2 60mm Drop 2015-2021 WRX / STI

$548.25
$548.25 - $548.25
$548.25
$493.43
$493.43 - $493.43
$493.43

Rear Lower control Arms are an ideal suspension modification after lowering any WRX/STI or FR-S/BRZ/86. The LCA will allow for proper rear camber a...

View full details

OLM Spec CR Sequential LED Tail Lights Clear Lens 2015-2021 WRX/STI

$429.00 - $429.00
$429.00
$429.00 - $429.00
$429.00

DESCRIPTION The OLM Spec CR Sequential LED Tail Lights for the 2015-2021 WRX/STI flip the stock taillights on their head with a reverse C-clamp LED...

View full details

OLM Spec CR Sequential LED Tail Lights Red Lens 2015-2021 WRX/STI

$429.00 - $429.00
$429.00
$429.00 - $429.00
$429.00

DESCRIPTION The OLM Spec CR Sequential LED Tail Lights for the 2015-2021 WRX/STI flip the stock taillights on their head with a reverse C-clamp LED...

View full details

OLM Spec CR Sequential LED Tail Lights Smoked Lens 2015-2021 WRX/STI

$429.00 - $429.00
$429.00
$429.00 - $429.00
$429.00

DESCRIPTION The OLM Spec CR Sequential LED Tail Lights for the 2015-2021 WRX/STI flip the stock taillights on their head with a reverse C-clamp LED...

View full details

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!