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Process West cold air intake kit for Subaru WRX STI 2014-2021 (VA/VAB). Replaces the factory air intake with lightweight CNC mandrel-bent aluminium tubing finished in black, and includes a K&N high-flow air filter. Fitted with a 72mm mass airflow housing; the MAF sensor may need re-scaling, or the ECU remapping, after installation.

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. Finished in black.

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.

Process West front mount intercooler kit for Subaru Impreza 1992-2000 (GC/GF). 600 x 285 x 100mm 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 2001-2002 (GD/GG Bugeye); Subaru Impreza 2003-2005 (GD/GG Blobeye); Subaru Impreza 2006-2007 (GD/GG Hawkeye). 685 x 285 x 100mm 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.

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 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 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 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.