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2015-2021 Subaru STI Engine

GrimmSpeed V2 Bypass Valve 2004-2021 STI / 2002-2007 WRX

Original price $249.00 - Original price $249.00
Original price
$249.00
$249.00 - $249.00
Current price $249.00

DESCRIPTION The GrimmSpeed V2 Bypass Valve received many upgrades such as a redesigned the internal piston to eliminate the potential failure point...

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MSP Front Brace Bar 2015-2021 WRX/STI

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

DESCRIPTION The MSP Front Brace Bar is engineered to provide a bold, aggressive look and increased chassis rigidity for your 2015-2021 WRX/STI. It ...

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GrimmSpeed Dry-Con Air Filters

Original price $59.00 - Original price $59.00
Original price
$59.00
$59.00 - $59.00
Current price $59.00

DESCRIPTION The GrimmSpeed Dry-Con Air Filter is a high-performance direct-OEM replacement panel filter that has been designed to flow more air whi...

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COBB Tuning Accessport V3 2015-2021 WRX/STI

Original price $725.00
Original price $725.00 - Original price $725.00
Original price $725.00
Current price $652.50
$652.50 - $652.50
Current price $652.50

50 State Legal Simple ECU flashing with gauge package! The new in-cabin mountable Accessport V3 has a large, full color, higher resolution screen ...

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OLM Carbon Fiber Hood Struts 2015-2021 WRX/STI

Original price $109.00 - Original price $109.00
Original price
$109.00
$109.00 - $109.00
Current price $109.00

DESCRIPTION Add a little style to your hood struts by swapping them for these OLM Carbon Fiber Hood Struts. This piece offers the same OE style and...

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IBR Flex Fuel Sensor Kit 2015-2021 WRX/STI

Original price $549.99 - Original price $549.99
Original price
$549.99
$549.99 - $549.99
Current price $549.99

This kit is designed to provide a way to data log and monitor the ethanol content of fuel on most new Subaru Vehicles. Our proprietary controller r...

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PLM EWG 38mm Up-Pipe w/ Dump Tube 2002-2014 WRX / 2004-2021 STI

Original price $279.00 - Original price $279.00
Original price
$279.00
$279.00 - $279.00
Current price $279.00

PLM Private Label Mfg. Power Driven Subaru EWG Up-Pipe with Dump Tube 38mm features a unique designed up pipe which gives you the option to install...

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GrimmSpeed Electronic Boost Control Solenoid 3-Port 2008-2021 STI

Original price $129.00 - Original price $129.00
Original price
$129.00
$129.00 - $129.00
Current price $129.00

DESCRIPTION The GrimmSpeed Electronic Boost Control Solenoid is one of GrimmSpeed's most utilized upgrades due to the durability, simplicity of use...

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

Original price $439.99 - Original price $439.99
Original price
$439.99
$439.99 - $439.99
Current price $439.99

The IAG Performance V3 Street Series Air / Oil separator (AOS) is an excellent investment to keep your Subaru vehicle running well. The Street Seri...

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GrimmSpeed Top Mount Intercooler Aluminum Y-Pipe Kit 2004-2021 STI

Original price $169.00
Original price $169.00 - Original price $169.00
Original price $169.00
$152.10 - $169.00
$152.10 - $169.00
Current price $152.10

DESCRIPTION The Grimmspeed Top Mount Intercooler Y-Pipe Kit has been designed to work with factory or aftermarket top mount intercoolers. This is a...

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

Original price $719.00 - Original price $799.00
Original price
$719.00 - $799.00
$719.00 - $799.00
Current price $719.00

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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COBB Tuning Pitch Stop Mount 2002+ WRX/STI

Original price $110.00 - Original price $110.00
Original price
$110.00
$110.00 - $110.00
Current price $110.00

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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Koyo Aluminum Racing Radiator 2008-2021 WRX/STI

Original price $359.00 - Original price $359.00
Original price
$359.00
$359.00 - $359.00
Current price $359.00

The Hyper V-Core Series is the newest to the Koyorad | Koyo All Aluminum Racing Radiator line up. An engine's cooling system in many newer vehicles...

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APR Carbon Fiber Radiator Cooling Plate 2015-2021 WRX/STI

Original price $268.60 - Original price $268.60
Original price
$268.60
$268.60 - $268.60
Current price $268.60

The flow of air is not only limited to the outside of a car. To maximize cooling capabilities, a radiator needs a direct flow of air to allow an en...

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Perrin Red Fender Shrouds 2015-2021 WRX/STI

Original price $97.75 - Original price $97.75
Original price
$97.75
$97.75 - $97.75
Current price $97.75

COMPLETE THE LOOK Matching Perrin's signature pulley cover design, the angled cutouts look great while concealing the factory fender gap.  DESIGN P...

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

Original price $345.00 - Original price $345.00
Original price
$345.00
$345.00 - $345.00
Current price $345.00

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 Tuning Intake Replacement Filter 2015-2021 WRX

Original price $85.00 - Original price $85.00
Original price
$85.00
$85.00 - $85.00
Current price $85.00

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

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Perrin Master Cylinder Brace 2015-2021 WRX/STI

Original price $136.00 - Original price $136.00
Original price
$136.00
$136.00 - $136.00
Current price $136.00

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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Perrin Brake Reservoir Cover 2002+ WRX/STI

Original price $12.75 - Original price $12.75
Original price
$12.75
$12.75 - $12.75
Current price $12.75

Dress up your engine bay while preventing leaks and spills from your master cylinder reservoir with the PERRIN Brake Reservoir Cozy.  Easy Installa...

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GrimmSpeed High Lift Hood Struts 2015+ WRX / 2015-2021 STI

Original price $99.00 - Original price $99.00
Original price
$99.00
$99.00 - $99.00
Current price $99.00

DESCRIPTION The biggest issue with the OEM struts that they prevent your hood from opening far enough to allow adequate space for working and light...

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COBB Tuning Battery Tie Down 2002+ WRX/STI

Original price $65.00 - Original price $65.00
Original price
$65.00
$65.00 - $65.00
Current price $65.00

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 Bypass Valve/ Blow Off Valve Gasket 2002-2007 WRX / 2004-2021 STI

Original price $13.00 - Original price $13.00
Original price
$13.00
$13.00 - $13.00
Current price $13.00

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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FactionFab Subaru Pitch Stop Mount 2002+ WRX/STI

Original price $99.00 - Original price $99.00
Original price
$99.00
$99.00 - $99.00
Current price $99.00

DESCRIPTION The Faction Fab Billet Aluminum Pitch Stop features a unique design that eliminates front to back engine movement while eliminating the...

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

Original price $65.00 - Original price $65.00
Original price
$65.00
$65.00 - $65.00
Current price $65.00

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 heat range tha...

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COBB Tuning SF Intake + Airbox 2019-2021 STI

Original price $525.00 - Original price $525.00
Original price
$525.00
$525.00 - $525.00
Current price $525.00

DESCRIPTION Setting the standard for MAF style intakes with a velocity stack, airflow straighteners and composite body for ultimate performa...

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COBB Tuning Stage 1+ Power Package 2015-2018 STI

Original price $1,175.00
Original price $1,175.00 - Original price $1,175.00
Original price $1,175.00
Current price $1,057.50
$1,057.50 - $1,057.50
Current price $1,057.50

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

Original price $185.00 - Original price $185.00
Original price
$185.00
$185.00 - $185.00
Current price $185.00

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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IBR Air Oil Separator 2002-2007 WRX / 2004-2021 STI

Original price $299.99 - Original price $299.99
Original price
$299.99
$299.99 - $299.99
Current price $299.99

This kit is designed to be the best AOS on the market. It is a triple pass system with carefully designed diameters and cross sect...

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Perrin Red Strut Tower Brace 2015-2021 WRX / STI

Original price $276.25 - Original price $276.25
Original price
$276.25
$276.25 - $276.25
Current price $276.25

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 Exhaust Gasket Set 2002-2014 WRX/ 2004-2021 STI

Original price $99.00 - Original price $99.00
Original price
$99.00
$99.00 - $99.00
Current price $99.00

DESCRIPTION We know that many of you replace all of your exhaust gasket at the same time while installing aftermarket exhaust parts on your car. We...

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Radium Master Cylinder Brace 2015-2021 WRX/STI

Original price $94.95 - Original price $94.95
Original price
$94.95
$94.95 - $94.95
Current price $94.95

This Radium Engineering master cylinder brace is compatible with the left hand drive (LHD) 15-21 Subaru WRX, 15-21 Subaru WRX STi, and 14-18 Forest...

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Cusco Type OS Front Strut Power Bar 2015-2021 WRX/STI

Original price $180.00 - Original price $180.00
Original price
$180.00
$180.00 - $180.00
Current price $180.00

6A1 540 A * Type 1 Aluminum Oval shape * Steel Blue Bracket Light weight aluminum oval shaft, strong & durable.

PLM EWG 44mm Up-Pipe w/ Dump Tube 2002-2014 WRX / 2004-2021 STI

Original price $249.00 - Original price $249.00
Original price
$249.00
$249.00 - $249.00
Current price $249.00

PLM Power Driven Subaru 44mm EWG Up-Pipe with Dump Tube features a unique designed Up-pipe which gives you the option to install a 44mm or 45mm ext...

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

Original price $2,098.95 - Original price $2,098.95
Original price
$2,098.95
$2,098.95 - $2,098.95
Current price $2,098.95

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

Original price $575.00 - Original price $575.00
Original price
$575.00
$575.00 - $575.00
Current price $575.00

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 AP3 OBD2 Universal Cable

Original price $75.00 - Original price $75.00
Original price
$75.00
$75.00 - $75.00
Current price $75.00

EMISSIONS This part is not an emissions-related part and therefore can be used on Emission Controlled Vehicles. DESCRIPTION Tired of your A...

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