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Subaru Valve Lifter Baja 2004-2006 / Forester 2004-2013 / Impreza 2003-2010 / Legacy 2005-2012 / Outback 2005-2009 / STI 2004-21 / WRX 2003-21 | 13228AB342
Regular price $55.00Regular priceUnit price per$55.00Sale price $55.00 -
Subaru Valve Lifter Baja 2004-2006 / Forester 2004-2013 / Impreza 2003-2010 / Legacy 2005-2012 / Outback 2005-2009 / STI 2004-21 / WRX 2003-21 | 13228AB382
Regular price $55.00Regular priceUnit price per$55.00Sale price $55.00 -
Subaru Valve Lifter Baja 2004-2006 / Forester 2004-2013 / Impreza 2003-2010 / Legacy 2005-2012 / Outback 2005-2009 / STI 2004-21 / WRX 2003-21 | 13228AB372
Regular price $47.00Regular priceUnit price per$47.00Sale price $47.00 -
Subaru Valve Lifter Baja 2004-2006 / Forester 2004-2013 / Impreza 2003-2010 / Legacy 2005-2012 / Outback 2005-2009 / STI 2004-21 / WRX 2003-21 | 13228AB312
Regular price $55.00Regular priceUnit price per$55.00Sale price $55.00 -
Subaru OEM Valve Cover Left Baja 2004-2006 / Forester 2004-2013 / Impreza 2004-2010 / Legacy 2005-2012 / Outback 2005-2009 / STI 2004-21 / WRX 2006-21 | 13278AA320
Regular price $222.00Regular priceUnit price per$222.00Sale price $222.00 -
Subaru OEM Valve Cover Left Baja 2004-2006 / Forester 2004-2013 / Impreza 2004-2010 / Legacy 2005-2009 / Outback 2005-2009 / STI 2004-21 / WRX 2006-21 | 13264AA400
Regular price $222.00Regular priceUnit price per$222.00Sale price $222.00 -
Subaru Valve Lifter Baja 2004-2006 / Forester 2004-2013 / Impreza 2003-2010 / Legacy 2005-2012 / Outback 2005-2009 / STI 2004-21 / WRX 2003-21 | 13228AB192
Regular price $55.00Regular priceUnit price per$55.00Sale price $55.00 -
Subaru Valve Lifter Baja 2004-2006 / Forester 2004-2013 / Impreza 2003-2010 / Legacy 2005-2012 / Outback 2005-2009 / STI 2004-21 / WRX 2003-21 | 13228AB262
Regular price $55.00Regular priceUnit price per$55.00Sale price $55.00 -
Subaru Valve Lifter Baja 2004-2006 / Forester 2004-2013 / Impreza 2003-2010 / Legacy 2005-2012 / Outback 2005-2009 / STI 2004-21 / WRX 2003-21 | 13228AB292
Regular price $55.00Regular priceUnit price per$55.00Sale price $55.00 -
Brian Crower Stroker Kit 83mm Billet Crank/ProH2K Rods 5.141in Custom Pistons Subaru EJ257 STI 2004-2017 | BC0629
Regular price $6,407.00Regular priceUnit price per$6,407.00Sale price $6,407.00 -
MagnaFlow CARB Compliant Direct-Fit Catalytic Converter Subaru Impreza 2.5L 2012-2014 / WRX 15-2016 / STI 15-2016 | 5411014
Regular price $2,779.00Regular priceUnit price per$2,779.00Sale price $2,779.00 -
MagnaFlow CARB Compliant Direct-Fit Catalytic Converter Subaru Impreza 2.5L 2012-2014 / WRX 15-2016 / STI 15-2016 | 5421012
Regular price $1,605.00Regular priceUnit price per$1,605.00Sale price $1,605.00 -
Torque Solution Crank Pulley Tool Subaru Impreza 1993-21/ WRX 2002-21 / STI 2004-2020 / Forester XT 1998-2010 / Legacy GT 1994-2011 / Outback XT 1994-2011 / 9-2X Aero Turbo 2005-2006 / BRZ 2012+ / Toyota GT86 2012+ / Scion FR-S 2012+ | TS-TL-703
Regular price $111.00Regular priceUnit price per$122.00Sale price $111.00Sale -
HKS 15-21 STI Dry Carbon Surround for Racing Cold Air Intake Kit | 70026-AF005
Regular price $1,298.00Regular priceUnit price per$1,527.00Sale price $1,298.00Sale -
HKS 15-21 STI Racing Cold Air Intake Kit w/ Dry Carbon Surround | 70026-AF004
Regular price $1,887.00Regular priceUnit price per$2,220.00Sale price $1,887.00Sale -
Radium Engineering 08-21 Subaru WRX/STI / 05-09 LGT V2 Fuel Hanger Plumbing Kit w/ Stainless Filter | 20-0629-03
Regular price $824.00Regular priceUnit price per$867.00Sale price $824.00Sale
Optimize your Subaru STI 2015-2021 engine's performance with a comprehensive range of top-quality aftermarket parts from industry-leading brands. Elevate the power and efficiency of your vehicle with ETS, HKS, Perrin, Mishimoto, AMS, Grimmspeed, Cobb, Remark, PLM, Turbosmart, IAG Performance, and more. Enhance airflow and filtration through AIR INTAKE DUCTS and COLD AIR INTAKES, while maintaining engine cleanliness with AIR OIL SEPARATORS and CATCH CANS. Experience impeccable control and responsiveness with BLOW OFF VALVES and BOOST CONTROL SOLENOID COVERS, complemented by the reliability of ENGINE MOUNTS and meticulously crafted ENGINE MANAGEMENT HARNESSES. Simplify maintenance and improve overall performance with DIPSTICKS and explore comprehensive ENGINE PACKAGE DEALS for a holistic approach to upgrading your Subaru WRX's engine. Unleash the full potential of your vehicle through precision-engineered components designed to deliver both power and durability, all meticulously designed to give your Subaru STI the edge on the road or track.