2015-2021 Subaru STI Engine
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GrimmSpeed Bypass Valve 2004-2021 STI / 2002-2007 WRX
Original price $229.00 - Original price $229.00Original price$229.00$229.00 - $229.00Current price $229.00| /The long-awaited GrimmSpeed Bypass Valves are here! Our passion for building the most robust, best-performing parts on the market has driven us to ...
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IBR Flex Fuel Sensor Kit 2015-2021 WRX/STI
Original price $549.99 - Original price $549.99Original price$549.99$549.99 - $549.99Current 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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Subaru OEM STI Radiator Cap 2002+ WRX / 2004-2021 STI
Original price $69.99 - Original price $69.99Original price$69.99$69.99 - $69.99Current price $69.99| / -
GrimmSpeed Neon Green Engine Dress-Up Kit 2015-2021 WRX/STI
Original price $297.00 - Original price $297.00Original price$297.00$297.00 - $297.00Current price $297.00| /The GrimmSpeed Alternator/Pulley Covers, Fender Shrouds and Radiator Shrouds are NOW available in our all new neon green color option, both individ...
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GrimmSpeed Dry-Con Air Filters
Original price $59.00 - Original price $59.00Original price$59.00$59.00 - $59.00Current price $59.00| /At GrimmSpeed we know that not everyone is ready for one of our full aftermarket intake systems, but still wants a safe and easy way to increase po...
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Perrin Panel Filter
Original price $60.30 - Original price $65.70Original price$60.30 - $65.70$60.30 - $65.70Current price $60.30| /The PERRIN High Flow Washable Replacement Air Filter is the last filter you will ever need to buy. Not only is it washable, but it will increase ho...
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Cusco Type OS Front Strut Power Bar 2015-2021 WRX/STI
Original price $180.00 - Original price $180.00Original price$180.00$180.00 - $180.00Current price $180.00| /6A1 540 A * Type 1 Aluminum Oval shape * Steel Blue Bracket Light weight aluminum oval shaft, strong & durable.
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IBR Flex Fuel Sensor Kit 2008-2014 WRX/STI
Original price $549.99 - Original price $549.99Original price$549.99$549.99 - $549.99Current 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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GetADomTune Cylinder 4 Chamber Cooling System 2015-2021 STI
Original price $85.00 - Original price $85.00Original price$85.00$85.00 - $85.00Current price $85.00| /Industry first (and patent pending) DOHC EJ Cylinder 4 Combustion Chamber Cooling kit increases coolant flow in the LH head to improve reliability...
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GrimmSpeed 2 Bolt Up-Pipe 2015-2021 STI
Original price $269.00 - Original price $309.00Original price$269.00 - $309.00$269.00 - $309.00Current price $269.00| /Adding a well-design, well-built aftermarket up pipe is one of the first things you should do to your Subaru. Our ultimate goal was to make the bes...
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GrimmSpeed Stealthbox Intake 2015-2021 STI
Original price $349.00 - Original price $349.00Original price$349.00$349.00 - $349.00Current price $349.00| /You've been asking for this bad sally for a while and it's finally here. The intake the for the 15+ STI can be thought of as a hybrid of the tube a...
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Perrin Black Strut Tower Brace 2015-2021 WRX / STI
Original price $263.50 - Original price $263.50Original price$263.50$263.50 - $263.50Current price $263.50| /Performance During cornering, the Perrin Strut Tower Brace improves chassis rigidity, enhances steering precision under high load conditions, and r...
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IAG PTFE Flex Fuel System Kit w/ Injectors, Lines, FRP, Fuel Rails 2008-2021 STI
Original price $1,679.99 - Original price $2,529.99Original price$1,679.99 - $2,529.99$1,679.99 - $2,529.99Current price $1,679.99| /The IAG Performance PTFE Engine Bay Flex Fuel Kit for the 2008-21 Subaru STI combines our popular PTFE Flex Fuel Line kit with IAG Top Feed Fuel Ra...
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IAG Street Series Air Oil Seperator 2008-2014 WRX/ 2008-2021 STI
Original price $439.99 - Original price $439.99Original price$439.99$439.99 - $439.99Current 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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OLM Carbon Fiber Hood Struts 2015-2021 WRX/STI
Original price $109.00 - Original price $109.00Original price$109.00$109.00 - $109.00Current price $109.00| /Add a little style to your hood struts by swapping them for these carbon fiber topped ones. Same OE style reliability with improved looks. Each gas...
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GrimmSpeed Catted Downpipe 2008-2014 WRX/ 2008-2021 STI
Original price $739.00 - Original price $859.00Original price$739.00 - $859.00$739.00 - $859.00Current price $739.00| /Proudly made in the USA - Design, Materials and Fabrication Innovative 3-D Contour Flange (Limited models only) FARO™ Arm Designed - We are at ...
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Subaru OEM STI Oil Filler Cap
Original price $131.78 - Original price $131.78Original price$131.78$131.78 - $131.78Current price $131.78| /An oil filler cap that combines a resin cover with an aluminum base cap that has been die-cast and cut. The shape of the cap is carefully designed ...
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Invidia Equal Length Big Piping Exhaust Manifold 2002-2014 WRX / 2006-2021 STI
Original price $1,302.00 - Original price $1,302.00Original price$1,302.00$1,302.00 - $1,302.00Current price $1,302.00| /This is the Invidia Equal Length Big Piping Exhaust Manifold. This type of manifold is ideal for those of you looking to surpass large horsepower f...
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GrimmSpeed Exhaust Manifold to Head Gasket (Pair) 2002+ WRX/STI / 2013+ BRZ
Original price $22.00 - Original price $22.00Original price$22.00$22.00 - $22.00Current price $22.00| /At GrimmSpeed™ we have worked with endless amounts of aftermarket gaskets, none seem to work as well as the multi-layer steel OEM style gaskets. Th...
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aFe Magnum Pro Dry S Performance Air Filter 2008-2021 WRX/ 2008-2018 STI
Original price $75.99 - Original price $75.99Original price$75.99$75.99 - $75.99Current price $75.99| /Constructed with 100% polyurethane on all four sides, this high flow, oiled OE replacement performance filter will out flow stock paper filter for ...
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FactionFab Subaru Pitch Stop Mount 2002+ WRX/STI
Original price $99.00 - Original price $99.00Original price$99.00$99.00 - $99.00Current price $99.00| /The pitch stop is designed to reduce front to back engine movement under acceleration and braking. In order to achieve maximum comfort, the factory...
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Perrin EBCS Pro Boost Control Solenoid 2015-2021 WRX/STI
Original price $163.80 - Original price $163.80Original price$163.80$163.80 - $163.80Current price $163.80| /The PERRIN Electronic Boost Control Solenoid (EBCS) Pro is designed to control today's high performance turbochargers with its ultra-fast response ...
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Cusco Brake Cylinder Stopper 2015-2021 WRX/STI
Original price $102.60 - Original price $102.60Original price$102.60$102.60 - $102.60Current price $102.60| /6A1 561 ALHD * USDM / LHD application * Steel Blue Bracket Upon hard braking, the sheet metal of the firewall flexes immensely from hydraulic press...
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Cusco Drive Shaft Heat Shield (Rear Left Side) 2015-2021 STI
Original price $72.00 - Original price $72.00Original price$72.00$72.00 - $72.00Current price $72.00| /Steel * Bolt on installation * Only for 6 Speed MT Protect Inner joint grease from high heat from muffler front pipe.
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Cusco Drive Shaft Heat Shield (Front Right Side) 2015-2021 STI
Original price $72.00 - Original price $72.00Original price$72.00$72.00 - $72.00Current price $72.00| /* Steel * Bolt on installation * Only for 6 Speed MT Protect Inner joint grease from high heat from muffler front pipe. 6A1 047 F
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Injector Dynamics 1050X Fuel Injectors 2002-2014 WRX/ 2007-2021 STI
Original price $546.00 - Original price $546.00Original price$546.00$546.00 - $546.00Current price $546.00| /Here are the details: 1050Xcc Injector model Compact body Improved internal flow path increases output by 5% without sacrificing low flow performan...
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COBB Accessport V3 2015-2021 WRX/STI
Original price $725.00 - Original price $725.00Original price$725.00$725.00 - $725.00Current price $725.00| /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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IAG 550 2.5L Short Block 2006-2014 WRX/2004-2021 STI
Original price $3,999.99 - Original price $4,890.96Original price$3,999.99 - $4,890.96$3,999.99 - $4,890.96Current price $3,999.99| /IAG 550 EJ25 2.5L SUBARU SHORT BLOCK DESIGNED FOR STRENGTH The IAG 550 Short Block is designed for modified EJ25 Subarus that n...
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Compressive Tuning Airblades 2.0 2015-2021 WRX
Original price $199.00 - Original price $199.00Original price$199.00$199.00 - $199.00Current price $199.00| /Description The blades that promote even temperatures and airflow through your engine bay, while giving your Subaru an outstanding visual upgrade....
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Killer B Stainless Steel Holy Header Max VE 2002-2021 WRX/STI
Original price $1,599.00 - Original price $2,379.00Original price$1,599.00 - $2,379.00$1,599.00 - $2,379.00Current price $1,599.00| /The Killer B Motorsport Holy Header VE-Max was developed using state of the art CAD software, simulations, and testing, to determine optimal high p...
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Killer B Stainless Steel Holy Header Max VE + Up-Pipe 2002-2021 WRX/STI
Original price $2,098.00 - Original price $2,928.00Original price$2,098.00 - $2,928.00$2,098.00 - $2,928.00Current price $2,098.00| /The Killer B Motorsport Holy Header VE-Max was developed using state of the art CAD software, simulations, and testing, to determine optimal high p...
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Beatrush Titanium Front Strut Bar 2015-2021 WRX/STI
Original price $1,163.00 - Original price $1,163.00Original price$1,163.00$1,163.00 - $1,163.00Current price $1,163.00| /For those wanting nothing but the best, the Beatrush Titanium front strut bar delivers just that. Weighing a mere 1.2kg or 2.6lbs, not only are yo...
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IAG EJ Competition Series Oil Pan 2002-2014 WRX/ 2004-2021 STI
Original price $629.99 - Original price $629.99Original price$629.99$629.99 - $629.99Current price $629.99| /The IAG Competition Series Oil Pan for the Subaru WRX and STI is uniquely designed and CNC machined to suit a wide range of street and track applic...
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IAG EJ Competition Series Oil Pan 2002-2014 WRX/ 2004-2021 STI
Original price $524.99 - Original price $524.99Original price$524.99$524.99 - $524.99Current price $524.99| /The IAG Competition Series Oil Pan for the Subaru WRX and STI is uniquely designed and CNC machined to suit a wide range of street and track applic...
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IAG EJ Street Series Oil Pan 2002-2014 WRX/ 2004-2021 STI
Original price $524.99 - Original price $524.99Original price$524.99$524.99 - $524.99Current price $524.99| /The IAG Street Series Oil Pan for the Subaru WRX and STI is uniquely designed and CNC machined to suit a wide range of street and track application...
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IAG Unequal Length 3-Bolt Header & Up-Pipe 2002-2014 WRX/ 2004-2021 STI
Original price $749.99 - Original price $749.99Original price$749.99$749.99 - $749.99Current price $749.99| /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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