2004-2007 Subaru STi - Engine

Roger Clark Motorsport Uprated Low Temperature Thermostat, 2002-2014 WRX & 2004-2021 STi

Roger Clark Motorsport High Performance 11mm Cylinder Head Stud Kit, 2002-2014 WRX & 2004-2021 STi

Roger Clark Motorsport Uprated Exhaust Valve Set, 2002-2014 WRX & 2004-2021 STi

Roger Clark Motorsport Uprated Inlet Valve Set, 2002-2014 WRX & 2004-2021 STi

Roger Clark Motorsport 14/12mm Cylinder Head Stud Kit, 2002-2014 WRX & 2004-2021 STi

Roger Clark Motorsport Extreme 11mm Cylinder Head Stud Kit, 2002-2014 WRX & 2004-2021 STi

Roger Clark Motorsport Fuel Pressure Regulator, 2002-2014 WRX & 2004-2021 STi

Roger Clark Motorsport Parallel Fuel Line Kit For RCM Regulator, 2002-2007 WRX & 2004-2007 STi

Roger Clark Motorsport Parallel Fuel Rail Kit / Standard Regulator (UK/USDM/Euro), 2002-2007 WRX & STi

Roger Clark Motorsport Billet Oil Filler Cap, 2002-2014 WRX & 2004-2021 STi

Roger Clark Motorsport Parallel Fuel Rail Kit / Rotated Turbo (UK/USDM/Euro), 2002-2007 WRX & STi

Roger Clark Motorsport Parallel Fuel Rail & Regulator Kit (UK, USDM & Euro Spec), 2002-2007 WRX & STi

Roger Clark Motorsport Parallel Fuel Line Kit For Standard Regulator, 2002-2007 WRX & 2004-2007 STi

Roger Clark Motorsport RCM / Arrow 75mm Billet Crankshaft, EJ20 & EJ25 'De-Stroked'

Roger Clark Motorsport RCM / Arrow 79mm Billet Crankshaft, 2004-2021 STi & 2006-2014 WRX

Roger Clark Motorsport Parallel Billet Fuel Rail Pair (UK/USDM/Euro), 2002-2014 WRX & 2007-2021 STi

Roger Clark Motorsport Group N Twin Scroll/EJ207 Baffled Oil Sump Pan, 2002-2014 WRX & 2004-2021 STi

Roger Clark Motorsport Single Scroll Oil Catch Tank Drain Back Hose Kit, 2002-2007 WRX & STi

Roger Clark Adjustable Alloy Cam Sprockets/Pulley Set (Single AVCS), 2004-2007 STi & 2006-2014 WRX

Roger Clark Motorsport Billet Battery Tie Down Clamp (Black), 2002-2026 WRX & 2004-2021 STi & BRZ/86

Torque Solution MAP Sensor Adapter, 2002-2007 WRX & 2004-2018 STi

Torque Solution Braided Fuel Line Kit for -6AN Aeromotive FPR, 2006-2014 WRX & 2007-2021 STi

Torque Solution Braided Fuel Line Kit for -6AN Aeromotive FPR, 2006-2014 WRX & 2007-2021 STi