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Subaru STI Engine Parts

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GrimmSpeed Top Mount Intercooler Kit 2002-2007 WRX / 2004-2021 STI

$636.65 - $679.15
$636.65 - $679.15
$636.65
$749.00 - $799.00
$749.00 - $799.00
$749.00

DESCRIPTION This is the GrimmSpeed Top Mount Intercooler. Once you start performing modifications that add more horsepower and more boost, eventual...

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Forced Performance Green Turbocharger 2002-2007 WRX / 2004-2021 STI

$1,479.00 - $1,829.00
$1,479.00 - $1,829.00
$1,479.00
$1,479.00 - $1,829.00

Oil Supply Line and gasket set included! FP Green HTZ Compressor wheel - 76HTZ Flow rating - 61LB per minute CW Measurements - 54.8MM Inducer / 76...

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Subaru OEM Group N Pitch Stop Mount 2002+ WRX / 2004-2021 STI

$74.95
$74.95 - $74.95
$74.95
$74.95 - $74.95

DESCRIPTION The Subaru OEM Group N Pitch Stop Mount is designed to minimize drivetrain movement and improve power delivery. In performance driving,...

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GrimmSpeed 2 Bolt Up-Pipe 2002-2014 WRX / 2004-2021 STI

$237.15
$237.15 - $237.15
$237.15
$279.00
$279.00 - $279.00
$279.00

EMISSIONS SEMA Certified - SC -GRM01-0145 for listed fitments CARB Certified - EO - #D-896 for listed fitments DESCRIPTION We designed this up pip...

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GrimmSpeed Red Fender Shrouds 2015-2021 WRX / 2015-2021 STI

$84.15
$84.15 - $84.15
$84.15
$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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COBB 2.5L Spark Plugs 2006-2014 WRX / 2004-2021 STI

$65.00
$65.00 - $65.00
$65.00
$65.00 - $65.00

Description This is the factory spark plug as installed in the 2018 Subaru WRX STI Type RA and 2019 Subaru WRX STI. The main differences are a...

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COBB 3-Port Boost Control Solenoid 2008-2014 WRX / 2008-2021 STI

$185.00
$185.00 - $185.00
$185.00
$185.00 - $185.00

Emissions 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with th...

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COBB Tuning Pitch Stop Mount 2002-2026 WRX / 2004-2021 STI

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

The COBB Subaru Pitch Stop Mount is constructed of CNC machined 6061-T6 aluminum and finished with black anodizing. The COBB logo is laser engrav...

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Forced Performance Blue Turbocharger 2002-2007 WRX / 2004-2021 STI

$1,349.00 - $1,799.00
$1,349.00 - $1,799.00
$1,349.00
$1,349.00 - $1,799.00

Oil supply line and gasket set included! FP Blue™ Compressor wheel - 73HTZ Flow rating - 57LB per minute CW Measurements - 52.6MM Inducer / 73MM E...

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COBB Tuning High Flow Fuel Pump 2008-2014 WRX / 2008-2021 STI

$190.00
$190.00 - $190.00
$190.00
$190.00 - $190.00

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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

$36.55
$36.55 - $36.55
$36.55
$43.00
$43.00 - $43.00
$43.00

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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COBB 4 Bar MAP Sensor Kit 2002-2007 WRX / 2004-2021 STI

$235.00
$235.00 - $235.00
$235.00
$235.00 - $235.00

Emissions 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with th...

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COBB Tuning Redline Carbon Fiber Fuse Cover 2008-2021 WRX/STI

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

The COBB Redline Carbon Fiber Fuse Cover for the 2008-2021 Subaru WRX/STI is constructed of solid carbon fiber featuring a 2x2 twill weave p...

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COBB Tuning AP3 OBD2 Universal Cable

$85.00
$85.00 - $85.00
$85.00
$85.00 - $85.00

DESCRIPTION Tired of your Accessport OBDII cable getting in the way? Our new OBDII Universal Cable features a much lower profile OBD connector...

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Perrin Red Recirculating Blow Off Valve 2002-2007 WRX / 2004-2021 STI

$208.50
$208.50 - $208.50
$208.50
$278.00
$278.00 - $278.00
$278.00

Adjustable relief pressure and flow control makes fine-tuning on the fly simple and quick with the PERRIN BOV/BPV. HIGH FLOW With large 1.225" inle...

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IAG Red Street Series Air Oil Separator 2008-2014 WRX / 2008-2021 STI

$424.99
$424.99 - $424.99
$424.99
$499.99
$499.99 - $499.99
$499.99

SAFEGUARD YOUR SUBARU The IAG Performance Air / Oil Separator (AOS) is a smart upgrade for your Subaru. Developed through years of meticul...

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GrimmSpeed Titanium 1.3 Bar Radiator Cap 2002-2026 WRX / 2004-2021 STI

$34.85
$34.85 - $34.85
$34.85
$41.00
$41.00 - $41.00
$41.00

DESCRIPTION Upgrade your cooling system with the GrimmSpeed Titanium Radiator Cap, rated at 1.3 bar for improved thermal control and reliability. B...

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IAG Unequal Length 3-Bolt Header & Up-Pipe 2002-2014 WRX/ 2004-2021 STI

$722.49
$722.49 - $722.49
$722.49
$849.99
$849.99 - $849.99
$849.99

The IAG Unequal Length Headers are the perfect way to add more performance to your Subaru WRX STI and still keep the iconic "Boxer Rumble." The hea...

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COBB Tuning Battery Tie Down 2002-2026 WRX / 2004-2021 STI

$75.00
$75.00 - $75.00
$75.00
$75.00 - $75.00

DESCRIPTION Our Subaru Battery Tie Down is professionally designed in CAD and machined from quality billet aluminum. A black anodized finish and ...

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GrimmSpeed Exhaust Manifold to Head Gasket (Pair) 2002-2026 WRX / 2004-2021 STI

$21.25
$21.25 - $21.25
$21.25
$25.00
$25.00 - $25.00
$25.00

DESCRIPTION These are the Grimmspeed Head to Exhaust Manifold Dual Port Gaskets. These particular gaskets see some of the highest temperatures when...

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Perrin Black Master Cylinder Brace 2015-2021 WRX / 2015-2021 STI

$120.00
$120.00 - $120.00
$120.00
$160.00
$160.00 - $160.00
$160.00

The PERRIN Master Cylinder Brace prevents unwanted movement of the master cylinder, allowing for increased brake pedal stiffness and response. REDU...

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GrimmSpeed Front Mount Intercooler Kit 2015-2021 STI

$1,393.15 - $1,486.65
$1,393.15 - $1,486.65
$1,393.15
$1,639.00 - $1,749.00
$1,639.00 - $1,749.00
$1,639.00

DESCRIPTION The GrimmSpeed Front Mount Intercooler Kit from GrimmSpeed has been designed with a great balance of low-pressure drop and high-tempera...

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COBB Tuning Redline Carbon Fiber Alternator Cover 2008-2014 WRX / 2008-2021 STI

$180.00
$180.00 - $180.00
$180.00
$180.00 - $180.00

The COBB Redline Carbon Fiber Alternator Cover is constructed of 2x2 twill carbon fiber sheet and finished off with a high quality clear coat tha...

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COBB Tuning LF BPV 2002-2007 WRX / 2004-2021 STI

$375.00
$375.00 - $375.00
$375.00
$375.00 - $375.00

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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COBB Stage 1+ Power Package 2015-2018 STI

$1,265.00
$1,265.00 - $1,265.00
$1,265.00
$1,265.00 - $1,265.00

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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Perrin Red Radiator Shroud 2015-2021 WRX / 2015-2021 STI

$85.50 - $145.50
$85.50 - $145.50
$85.50
$114.00 - $194.00
$114.00 - $194.00
$114.00

The PERRIN Radiator Shroud caps the top of the radiator for a sleek, clean, and accented new look. DESIGN Dress up the top of your radiator with t...

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Perrin Red Strut Tower Brace 2015-2021 WRX / 2015-2021 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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GrimmSpeed Intercooler BPV/BOV Gasket 2002-2007 WRX / 2004-2021 STI

$12.75
$12.75 - $12.75
$12.75
$15.00
$15.00 - $15.00
$15.00

DESCRIPTION We all know how bad (and expensive!) the OEM Subaru Top Mount Intercooler Gaskets can be. They are one of the greatest source of leaks ...

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COBB Tuning SF Intake Replacement Filter 2002-2014 WRX / 2004-2021 STI

$65.00
$65.00 - $65.00
$65.00
$65.00 - $65.00

DESCRIPTION The filter element that originally came with your SF Intake is cleanable and can be reused for the life of your car. However, should...

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GrimmSpeed Street Pitch Stop Mount 2002-2026 WRX / 2004-2021 STI

$92.65
$92.65 - $92.65
$92.65
$109.00
$109.00 - $109.00
$109.00

DESCRIPTION This is the GrimmSpeed Pitch Stop Mount. This pitch stop mount is a dramatic improvement over the factory mount which is made from flex...

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COBB Tuning Top Feed 1050X Fuel Injectors 2002-2014 WRX / 2007-2021 STI

$625.00
$625.00 - $625.00
$625.00
$625.00 - $625.00

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

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Process West Intake Manifold Street Version 2002-2014 WRX / 2004-2021 STI

$2,247.00
$2,247.00 - $2,247.00
$2,247.00
$2,247.00 - $2,247.00

The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics ...

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Perrin Hella Horn Bracket 2015-2021 WRX / 2015-2021 STI

$42.00
$42.00 - $42.00
$42.00
$56.00
$56.00 - $56.00
$56.00

DESCRIPTION The Perrin Brackets for HELLA Horns are designed for a perfect fit. Tailored for specific models makes for a better fit than competitor...

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GrimmSpeed Race Pitch Stop Mount 2002-2026 WRX / 2004-2021 STI

$92.65
$92.65 - $92.65
$92.65
$109.00
$109.00 - $109.00
$109.00

DESCRIPTION The GrimmSpeed Race Version Pitch Stop Mount And Bushing Kit is a pivotal component in the engine/drivetrain support department especia...

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COBB Tuning Nexgen Flex Fuel Ethanol Sensor Kit 2015-2021 STI

$790.00
$790.00 - $790.00
$790.00
$790.00 - $790.00

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

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COBB Tuning SS 2" Uppipe 2006-2014 WRX / 2004-2021 STI

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

Emissions 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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Every part we offer is precision-engineered for seamless integration and maximum impact. From reliable endurance to thrilling power gains, these parts are made to perform. Don’t wait to transform your Subaru into the ultimate performance machine; start your build with WRXDaily’s expertly crafted parts today.