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2015-2021 WRX & STI Mods

South Bend Clutch Stage 3 Endurance Clutch Kit 2004-2021 STI

Current price $1,263.83
$1,263.83 - $1,263.83
Current price $1,263.83
Original price $1,302.92
Original price $1,302.92 - Original price $1,302.92
Original price $1,302.92

Southbend Clutch Kits are considered to be one of the most comfortable high-performance clutch kits on the market due to the OEM-like feel and driv...

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AEM Electronics CD-7LG Carbon Logging Display w/ GPS

Current price $2,249.95
$2,249.95 - $2,249.95
Current price $2,249.95
Original price $2,531.95
Original price $2,531.95 - Original price $2,531.95
Original price $2,531.95

CD-7LG CARBON DIGITAL DASH DISPLAY SPECS: Full color 7" screen with 800x480 resolution Direct sunlight readable (1000cd/m2 brightness and anti-gla...

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APR Carbon Fiber Front Splitter Stock Bumper 2015-2017 WRX/STI

Current price $509.15
$509.15 - $509.15
Current price $509.15
Original price $599.00
Original price $599.00 - Original price $599.00
Original price $599.00

To combat the effects of front end lift, APR Front Wind Splitters are utilized to give extra traction and control in the front of a car. By creatin...

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Invidia N1 Stainless Tip Single Exit Exhaust 2015-2021 WRX / 2015-2021 STI

Current price $1,000.19
$1,000.19 - $1,000.19
Current price $1,000.19
Original price $1,428.84
Original price $1,428.84 - Original price $1,428.84
Original price $1,428.84

DESCRIPTION The Invidia N1 Single Exit Cat-Back Exhaust System with Stainless Steel Tip is a high-performance upgrade tailored for 2015-2021 Subaru...

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Invidia Q300 Resonated Single Exit Catback 2015-2021 WRX / 2015-2021 STI

Current price $1,049.58
$1,049.58 - $1,049.58
Current price $1,049.58
Original price $1,499.40
Original price $1,499.40 - Original price $1,499.40
Original price $1,499.40

DESCRIPTION The Invidia Q300 Single Exit Cat-Back Exhaust System with Stainless Steel Tip is a premium performance upgrade for 2015-2021 Subaru WRX...

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Invidia Racing Full Titanium Single Exit Catback Exhaust 2015-2021 WRX / 2015-2021 STI

Current price $1,324.76
$1,324.76 - $1,324.76
Current price $1,324.76
Original price $1,892.52
Original price $1,892.52 - Original price $1,892.52
Original price $1,892.52

DESCRIPTION The Invidia Full Titanium Cat-Back Exhaust System is the pinnacle of performance and design for 2015-2021 Subaru WRX and STI models. Cr...

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Tein Mono Sport Coilovers 2015-2021 WRX / 2015-2021 STI

Current price $1,890.50
$1,890.50 - $1,890.50
Current price $1,890.50
Original price $1,990.00
Original price $1,990.00 - Original price $1,990.00
Original price $1,990.00

New for 2015, this particular model of the Tein Mono Sport Coilovers is designed to greatly reduce body roll compared to the factory setup. The res...

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Tein RX1 Coilovers 2015-2021 WRX/STI

Current price $1,472.50
$1,472.50 - $1,472.50
Current price $1,472.50
Original price $1,550.00
Original price $1,550.00 - Original price $1,550.00
Original price $1,550.00

Highlights: Full-Length Ride Height Adjustment Feature - Ride Height Adjustment with Little or No Change in Ride Quality. Twin-Tube Structure - Fo...

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AEM Wrinkle Red Front Strut Tower Bar 2015-2021 WRX / 2015-2021 STI

$346.99
$346.99 - $346.99
Current price $346.99
Original price $346.99 - Original price $346.99
Original price

When a car equipped with a McPherson Strut suspension system, like the 2015 Subaru WRX 2.0L or WRX STi 2.5L, is being driven through a turn there i...

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Cusco Adjustable Rear Trailing Rods 2015-2021 WRX/STI

Current price $513.00
$513.00 - $513.00
Current price $513.00
Original price $570.00
Original price $570.00 - Original price $570.00
Original price $570.00

Cusco's rear trailing arm controls unwanted force under acceleration and braking. Cusco's adjustable pillowball trailing arms prevents unwanted whe...

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Corsa Performance Catback Exhaust Polished Tips 2015-2021 WRX/STI

$1,856.99
$1,856.99 - $1,856.99
Current price $1,856.99
Original price $1,856.99 - Original price $1,856.99
Original price

Here, you are looking at the Corsa Performance 3-Inch Dual Rear Exit Catback Exhaust System with Twin 3.5-inch Tips. This exhaust system has been d...

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Corsa Performance Catback Exhaust Polished Black Tips 2015-2021 WRX/STI

$1,928.99
$1,928.99 - $1,928.99
Current price $1,928.99
Original price $1,928.99 - Original price $1,928.99
Original price

Here, you are looking at the Corsa Performance 3-Inch Dual Rear Exit Catback Exhaust System with Twin 3.5-inch Tips. This exhaust system has been d...

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Tein Super Racing Coilovers 2015-2021 WRX/STI

$3,910.00
$3,910.00 - $3,910.00
Current price $3,910.00
Original price $3,910.00 - Original price $3,910.00
Original price

Developed from actual competition, TEIN was able to create a fully adjustable damper that can be easily tuned for any track and weather conditions....

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Invidia Gemini R400 Full Titanium Catback Exhaust 2015-2021 WRX / 2015-2021 STI

Current price $1,756.44
$1,756.44 - $1,756.44
Current price $1,756.44
Original price $2,509.20
Original price $2,509.20 - Original price $2,509.20
Original price $2,509.20

DESCRIPTION The Invidia Gemini R400 Full Titanium Cat-Back Exhaust System is the ultimate performance upgrade for 2015-2021 Subaru WRX and STI mode...

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HKS Super Turbo Muffler Titanium Exhaust 2015-2021 WRX/STI

$6,300.00
$6,300.00 - $6,300.00
Current price $6,300.00
Original price $6,300.00 - Original price $6,300.00
Original price

PURSUIT OF THE IDEAL EXHAUST SYSTEM With the HKS Super Turbo Muffler Exhaust being made of titanium allows a significent weight reduction to 13.4...

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OLM LE Dry Carbon Fiber Belt Cover 2015-2021 STI

$199.00
$199.00 - $199.00
Current price $199.00
Original price $199.00 - Original price $199.00
Original price

DESCRIPTION The OLM LE Dry Carbon Fiber Belt Cover, imported from Japan, exemplifies this commitment to quality craftsmanship. Axis Parts meti...

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Blouch Dominator 5.0XT-R Ball Bearing Turbocharger 2002-2007 WRX / 2004-2021 STI

$2,480.50 - $2,580.50
$2,480.50 - $2,580.50
Current price $2,480.50
Original price $2,480.50 - Original price $2,580.50
Original price

Disclaimer: Photos are for illustrative purposes only, the actual product may differ slightly. DESCRIPTION The Blouch Dominator 5.0XT-R Full Ball B...

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Perrin Front Mount Intercooler Kit 2015-2021 STI

$2,398.70 - $2,499.00
$2,398.70 - $2,499.00
Current price $2,398.70
Original price $2,822.00 - Original price $2,940.00
Original price $2,822.00 - Original price $2,940.00
Original price $2,822.00

PERRIN Front Mount Intercooler Kits are ideal for those who want to get the most out of their turbocharged Subaru. Add power and a bold new look al...

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Perrin Hyper Pink Cold Air Intake 2018-2021 STI

Current price $304.30
$304.30 - $304.30
Current price $304.30
Original price $358.00
Original price $358.00 - Original price $358.00
Original price $358.00

Increase horsepower and add under-hood style with the PERRIN Cold Air Intake. It features correct MAF alignment and tubing size to maintain proper ...

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Perrin 3.0" Turbo Inlet 2002-2007 WRX/ 2004-2021 STI

Current price $283.05
$283.05 - $283.05
Current price $283.05
Original price $333.00
Original price $333.00 - Original price $333.00
Original price $333.00

The PERRIN Turbo Inlet Hose has a smooth interior and larger diameter than the OEM hose, increasing airflow. Removing OEM pleats boosts horsepower,...

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Cusco Rear End Brace 2015-2021 WRX/STI

Current price $256.50
$256.50 - $256.50
Current price $256.50
Original price $285.00
Original price $285.00 - Original price $285.00
Original price $285.00

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

Cusco Center Floor Power Brace 2008-2021 STI

Current price $567.00
$567.00 - $567.00
Current price $567.00
Original price $630.00
Original price $630.00 - Original price $630.00
Original price $630.00

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

Cusco Front Member Brace 2015-2021 WRX/STI

Current price $261.00
$261.00 - $261.00
Current price $261.00
Original price $290.00
Original price $290.00 - Original price $290.00
Original price $290.00

* Connect both front Subframe 6A1 492 FM

Cusco Single Clutch System 2004-2021 STI

Current price $1,665.00
$1,665.00 - $1,665.00
Current price $1,665.00
Original price $1,850.00
Original price $1,850.00 - Original price $1,850.00
Original price $1,850.00

667 022 HP * 11800 N/f (1200 Kg/f) Heavy clutch pedal greatly hinders shifting performance. This is why our clutch systems feature a specially desi...

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Cusco Twin Plate Clutch System 2004-2021 STI

Current price $2,340.00
$2,340.00 - $2,340.00
Current price $2,340.00
Original price $2,600.00
Original price $2,600.00 - Original price $2,600.00
Original price $2,600.00

* 9800 N/f (1000 Kg/f) Used in professional competition, this twin metal unit features great controllability especially during half clutch engageme...

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Cusco Twin Disc Clutch System Copper 2004-2021 STI

Current price $2,430.00
$2,430.00 - $2,430.00
Current price $2,430.00
Original price $2,700.00
Original price $2,700.00 - Original price $2,700.00
Original price $2,700.00

667 022 CP * 10800 N/f (1100 Kg/f) Copper disc has unique frictional-temperature characteristics where the frictional properties remains unchanged ...

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Cusco Increased Capacity Rear Differential Cover 2004-2021 STI

Current price $895.50
$895.50 - $895.50
Current price $895.50
Original price $995.00
Original price $995.00 - Original price $995.00
Original price $995.00

* Need following OE parts for installation : Air Breather Cap - 38354AA020 x 1 pc Gasket - 38353aa050 x 1 pc Gasket (Only for T-type H3 / H4 Oil se...

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Cusco End Link Bushing Set 2015-2021 WRX/STI

Current price $220.50
$220.50 - $220.50
Current price $220.50
Original price $245.00
Original price $245.00 - Original price $245.00
Original price $245.00

692 464 SV

Cusco Front Lateral Link Bushings (Lower Arm - Body Side) 2015-2021 WRX/STI

Current price $234.00
$234.00 - $234.00
Current price $234.00
Original price $260.00
Original price $260.00 - Original price $260.00
Original price $260.00

Cusco Rear Upper Control Arm Bushings (Front Side) 2015-2021 WRX/STI

Current price $243.00
$243.00 - $243.00
Current price $243.00
Original price $270.00
Original price $270.00 - Original price $270.00
Original price $270.00

965 464 LV

Cusco Rear Upper Control Arm Bushings (Rear Side) 2015-2021 WRX/STI

Current price $256.50
$256.50 - $256.50
Current price $256.50
Original price $285.00
Original price $285.00 - Original price $285.00
Original price $285.00

965 464 IV

Cusco Front Lower Control Arm Bushings (Rear Side) 2015-2021 WRX/STI

Current price $576.00
$576.00 - $576.00
Current price $576.00
Original price $640.00
Original price $640.00 - Original price $640.00
Original price $640.00

Cusco Front Lower Control Arm Bushings (Front Side) 2015-2021 WRX/STI

Current price $243.00
$243.00 - $243.00
Current price $243.00
Original price $270.00
Original price $270.00 - Original price $270.00
Original price $270.00

692 464 BV

Cusco 26mm Front Sway Bar 2015-2021 STI

Current price $396.00
$396.00 - $396.00
Current price $396.00
Original price $440.00
Original price $440.00 - Original price $440.00
Original price $440.00

Maintain great comfort while suppressing body roll during cornering * 26 mm OD ( vs. 24 mm OEM ) * 127% Solid vs. OEM * HD Bushings included

Tomei ARMS MX7760 Turbo 2002-2007 WRX / 2004-2021 STI

Current price $1,422.00
$1,422.00 - $1,422.00
Current price $1,422.00
Original price $1,580.00
Original price $1,580.00 - Original price $1,580.00
Original price $1,580.00

On this page, you are looking at the Tomei ARMS MX7760 Single Scroll Turbocharger. This is Tomei's latest design that features a new CNC billet com...

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Tomei ARMS MX7960 Turbo 2002-2007 WRX / 2004-2021 STI

Current price $1,422.00
$1,422.00 - $1,422.00
Current price $1,422.00
Original price $1,580.00
Original price $1,580.00 - Original price $1,580.00
Original price $1,580.00

On this page, you are looking at the Tomei ARMS MX7960 Turbocharger. This is Tomei's latest design that features a new CNC billet compressor wheel....

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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!