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2015-2021 WRX & STI Mods

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Whiteline Performance Lowering Spring Kit 2015-2021 WRX

$254.91
$254.91 - $254.91
$254.91
$339.88
$339.88 - $339.88
$339.88

Whiteline Springs deliver improved vehicle performance whilst maintaining safety and ride quality characteristics. This kit contains 6.1kg/mm (341l...

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COBB Tuning HD Adjustable Front Sway Bar Link Kit 2008-2021 WRX/STI

$205.00
$205.00 - $205.00
$205.00
$205.00 - $205.00

If you're looking for the best endlinks for the adjustable sway bar on your Subaru, look no further. The COBB heavy duty adjustable endlinks are ...

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Perrin Neon Yellow Strut Tower Brace 2015-2021 WRX / STI

$249.75
$249.75 - $249.75
$249.75
$333.00
$333.00 - $333.00
$333.00

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

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SuperPro Front Complete Lower Alloy Control Arm Assembly Kit 2015-2021 WRX/STI

$749.99
$749.99 - $749.99
$749.99
$749.99 - $749.99

SuperPro Roll Control WRX Supaloy Front Lower Control Arms increase the handling of your WRX to better than that of the STI. Alloy light-weight an...

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COBB Tuning Rear Differential to Subframe Mount Bushing Inserts 2008-2021 WRX/STI

$40.00
$40.00 - $40.00
$40.00
$40.00 - $40.00

Rear Differential – Subframe Mount Insert/Supplement uses specially formulated Polyurethane which allows mounting of the rear diff securely and s...

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Stance Adjustable Red Rear Lower Control Arms V2 60mm Drop 2015-2026 WRX / 2015-2021 STI

$580.50
$580.50 - $580.50
$580.50
$645.00
$645.00 - $645.00
$645.00

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...

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RacerX Rear Upper Control Arms 2008-2021 WRX / 2008-2021 STI

$759.00
$759.00 - $759.00
$759.00
$759.00 - $759.00

The Racer X Fabrication rear upper control arms for the 2008+ Subaru WRX / STI are the best option for adjusting camber on the rear of your vehicle...

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ISC Rear Adjustable Toe Arms 2008-2021 WRX/STI

$349.00
$349.00 - $349.00
$349.00
$399.00
$399.00 - $399.00
$399.00

Our new ISC toe arms havebeen designed to allow the end-user to fine-tune their suspensionsettings which can be especially beneficial for those wit...

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Whiteline Performance Lowering Spring Kit 2015-2021 STI

$254.91
$254.91 - $254.91
$254.91
$339.88
$339.88 - $339.88
$339.88

Whiteline Springs deliver improved vehicle performance whilst maintaining safety and ride quality characteristics. This kit contains 6.1kg/mm (329...

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SuperPro Rear Adjustable Toe Arms 2008-2021 WRX / 2008-2021 STI

$339.99
$339.99 - $339.99
$339.99
$339.99 - $339.99

SuperPro has a complete replacement and repair upgrade solution for control arms.The SuperPro kit comes with arms with heavy duty ball joints, brac...

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SuperPro Rear Lower Control Arms 2015+ WRX / 2008-2021 STI

$359.99
$359.99 - $359.99
$359.99
$359.99 - $359.99

SuperPro has a complete replacement and repair upgrade solution for control arms.The SuperPro kit comes with arms with heavy duty ball joints, brac...

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SuperPro Rear Lower Control Arms and Toe Arms Kit 2015-2021 WRX/STI

$624.99
$624.99 - $624.99
$624.99
$624.99 - $624.99

SuperPro has a complete replacement and repair upgrade solution for control arms.The SuperPro kit comes with arms with heavy duty ball joints, brac...

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IAG Spec Street Series Coilovers 2015-2021 WRX / 2015-2021 STI

$1,999.99
$1,999.99 - $1,999.99
$1,999.99
$1,999.99 - $1,999.99

IAG SPEC STREET SERIES COILOVERS BY FORTUNE AUTO IAG Performance and Fortune Auto have joined forces to bring you the IAG Spec Street S...

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Perrin Black Rear Shock Tower Brace 2015-2021 WRX/STI

$167.25
$167.25 - $167.25
$167.25
$223.00
$223.00 - $223.00
$223.00

Enhance chassis rigidity and improve steering precision with the ultra-strong PERRIN Rear Shock Tower Brace.  PERFORMANCE During cornering, the Pe...

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Silvers NEOMAX Super Low Coilovers 2015-2021 WRX/STI

$1,399.00
$1,399.00 - $1,399.00
$1,399.00
$1,399.00 - $1,399.00

Adjustable T6 6061 front camber plates on all applicable McPherson style applications. Koyo Japan Radial Bearing upper spring perch standard on al...

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COBB Tuning Front Roll Center Bump Steer Kit 2008-2021 WRX / 2008-2021 STI

$295.00
$295.00 - $295.00
$295.00
$295.00 - $295.00

This kit has been designed to raise the roll-center geometry for those with lowered vehicles. This will improve the overall front stability under...

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Whiteline Anti Lift Kit 2015-2026 WRX/ 2011-2021 STI

$128.91
$128.91 - $128.91
$128.91
$171.88
$171.88 - $171.88
$171.88

Whiteline's Anti Geometry Kit replaces the front control arm rear vertically mounted bushing and featuring low compliance synthetic elastomer with ...

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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

FactionFab V2 FR-Spec Coilovers 2015-2021 WRX/STI

$1,350.00
$1,350.00 - $1,350.00
$1,350.00
$1,350.00 - $1,350.00

DESCRIPTION The Faction Fab V2 FR-Spec Coilovers are a pre-assembled coilover set that is ready to install right out of the box. These coilovers ar...

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Air Lift Performance Front Kit 2015-2021 WRX / 2015-2021 STI

$1,154.99
$1,154.99 - $1,154.99
$1,154.99
$1,510.99
$1,510.99 - $1,510.99
$1,510.99

Get the stance you want and the performance you need with Air Lift’s Performance air suspension kits! Every kit we offer is fully engineered to pro...

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SuperPro Front Lower Complete Alloy Control Arm Kit 2015-2021 WRX/STI

$749.99
$749.99 - $749.99
$749.99
$749.99 - $749.99

SuperPro Roll Control WRX Supaloy Front Lower Control Arms increase the handling of your WRX to better than that of the STI.The arms are built with...

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Whiteline 26mm Adjustable Front Sway Bar 2015-2021 STI

$239.91
$239.91 - $239.91
$239.91
$319.88
$319.88 - $319.88
$319.88

Engineered to 'Activate More Grip', sway bars are principally designed to reduce body roll or sway. By reducing body roll, lateral loads are sprea...

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Whiteline Rear Differential Mount Inserts 2008-2026 WRX / 2008-2021 STI

$59.16
$59.16 - $59.16
$59.16
$78.88
$78.88 - $78.88
$78.88

Whiteline's differential insert bushings work within the voids of the original factory bushing to ensure pinion angles are maintained while deliver...

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IAG Coilover Cover Sleeves 2002-2026 WRX / 2004-2021 STI

$99.99
$99.99 - $99.99
$99.99
$99.99 - $99.99

PROTECT YOUR COILOVERS You’ve spent a lot of money on your coilovers, why not protect your investment? IAG’s Coilover Cover Sleeves provide a...

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Perrin 26mm Front Sway Bar 2015-2021 WRX

$237.75
$237.75 - $237.75
$237.75
$317.00
$317.00 - $317.00
$317.00

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

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

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

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Silvers NEOMAX Coilovers 2015-2021 WRX/STI

$1,399.00
$1,399.00 - $1,399.00
$1,399.00
$1,399.00 - $1,399.00

Adjustable T6 6061 front camber plates on all applicable McPherson style applications. Koyo Japan Radial Bearing upper spring perch standard on al...

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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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Perrin 22mm Rear Sway Bar 2008-2021 WRX/STI

$210.00
$210.00 - $210.00
$210.00
$280.00
$280.00 - $280.00
$280.00

Add a PERRIN Adjustable Rear Swaybar to your WRX & STI. Adding a swaybar is the easiest way to improve and fine-tune the handling of your vehi...

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Perrin Black Strut Tower Brace 2015-2021 WRX / STI

$249.75
$249.75 - $249.75
$249.75
$333.00
$333.00 - $333.00
$333.00

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

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FactionFab 22mm Rear Sway Bar 2008-2021 WRX/STI

$280.00
$280.00 - $280.00
$280.00
$280.00 - $280.00

DESCRIPTION The Faction Fab Rear Sway Bar is a cost-effect solution to set your car up for a balanced grip and reduced body roll when cornering. Wi...

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

$1,980.00
$1,980.00 - $1,980.00
$1,980.00
$1,980.00 - $1,980.00

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...

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HKS Hipermax S Coilovers 2015-2021 WRX / 2015-2021 STI

$2,080.00
$2,080.00 - $2,080.00
$2,080.00
$2,080.00 - $2,080.00

These are the HKS Hypermax S Coilovers. These coil overs are for those who demand performance, looks and handling out of their suspension for an ov...

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ISC Rear Adjustable Control Arms V3 2008+ WRX / 2008-2021 STI

$475.00
$475.00 - $475.00
$475.00
$575.00
$575.00 - $575.00
$575.00

The all new ISC V3 Rear Control arm features the same great features of theoriginal, but is now 1 lb LIGHTER, and even more ascetically pleasingto ...

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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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Air Lift Performance 3H Full Kit 2015-2021 WRX / 2015-2021 STI

$4,647.46 - $5,348.54
$4,647.46 - $5,348.54
$4,647.46
$5,868.40 - $6,682.93
$5,868.40 - $6,682.93
$5,868.40

Get the stance you want and the performance you need with Air Lift’s Performance air suspension kits! Every kit we offer is fully engineered to pro...

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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!