Turbo & Induction

Process West billet reverse-orientation inlet manifold (cable throttle) for Subaru Impreza 2001-2002 (GD/GG Bugeye); Subaru Impreza 2003-2005 (GD/GG Blobeye), finished in black. Full billet plenum with polished, mandrel-bent tube components, TIG-welded and rated by Process West for up to 100psi boost.

Replacement K&N air filter for use with Process West cold air intake kits, compatible with a range of Subaru BRZ, Forester, Impreza/WRX/STI, Legacy/Outback, WRX/STI models.

Process West front mount intercooler kit for Subaru Impreza / WRX STI 2008-2013 (GR/GV); Subaru WRX STI 2014-2021 (VA/VAB). 620 x 255 x 90mm bar-and-plate core with hi-flow polished aluminium end tanks and mandrel-bent aluminium piping.

Process West top-mount intercooler for Subaru Impreza 2001-2002 (GD/GG Bugeye). 90mm (3.5in) thick core with a matching under-bonnet duct/shroud sized to fit, for full ambient airflow across the core face.

Process West top-mount intercooler for GC8 Impreza, MY99-00 (GC/GF). Supplied with a correctly sized under-bonnet splitter/shroud matched to the larger core, so the full core face receives ambient airflow. Core dimensions were not specified in the source listing.

Process West top-mount intercooler for GC8 Impreza, MY97-98 (GC/GF). Supplied with a correctly sized under-bonnet splitter/shroud matched to the larger core, so the full core face receives ambient airflow. Core dimensions were not specified in the source listing.

Process West front mount intercooler kit for Subaru WRX STI 2014-2021 (VA/VAB). 685 x 275 x 85mm bar-and-plate core with hi-flow polished aluminium end tanks and mandrel-bent aluminium piping.

Process West front mount intercooler kit for Subaru Impreza / WRX STI 2008-2013 (GR/GV); Subaru WRX STI 2014-2021 (VA/VAB). 620 x 255 x 90mm bar-and-plate core with hi-flow polished aluminium end tanks and mandrel-bent aluminium piping. Finished in black.

Process West front mount intercooler kit for Subaru Impreza / WRX STI 2008-2013 (GR/GV); Subaru WRX STI 2014-2021 (VA/VAB). 620 x 255 x 90mm bar-and-plate core with hi-flow polished aluminium end tanks and mandrel-bent aluminium piping.

K&N-based induction kit for Subaru Impreza 2001-2002 (GD/GG Bugeye); Subaru Impreza 2003-2005 (GD/GG Blobeye); Subaru Impreza 2006-2007 (GD/GG Hawkeye), with a black aluminium induction trumpet. Direct replacement for the factory air box, using a 170mm K&N cone filter with a 160mm mounting flange and a port for the standard MAF sensor.