GrimmSpeed Subaru WRX & STI Parts

The range includes intake and charge-air parts such as charge pipe kits, post-MAF pipe kits, turbo inlets, DRY-CON panel filters and top mount intercooler splitters. Exhaust-side items include equal length headers, up-pipes, exhaust and turbo gaskets, heat shields and catback adapters. There are also chassis and driveline parts such as strut bars, engine and transmission mounts, short throw shifters and shifter bushing kits, wheel spacers, brake caliper kits, radiator hose kits, battery tiedowns, high-lift hood struts, mudflaps, licence plate deletes and relocation kits, Hella horn brackets and harnesses, plus titanium and standard dress-up shrouds, pulley covers and radiator caps.

Subaru WRX and STI parts are generally listed by chassis code rather than model year alone. Common identifiers in this range are GC8 (1993-2000 Impreza WRX/STI), GDA/GGA/GDB (2001-2007 WRX and STI), GE8/GH8/GR8/GV8 with GRF/GVF (2008-2014 WRX and STI), VAG/VAB (2015-2021 WRX and STI) and VBH/VNH (2022+ WRX). Some items are also listed for related models such as the Forester XT (SG9/SJG), Liberty GT and BRZ. Check the chassis code, model year and transmission type on the individual product page, and confirm the details against your own build plate or compliance plate. If your car has been modified from standard, verify that existing aftermarket parts will still clear the component you are ordering.

Fitment requirements vary widely across this range. Dress-up parts such as shrouds, pulley covers and radiator caps are typically straightforward bolt-on items, while headers, up-pipes, charge pipes, engine and transmission mounts, brake caliper kits and shifter components involve more substantial disassembly and may require vehicle support, specific torque values and fresh gaskets or hardware. Some exhaust and boost-related changes can affect engine management and may need a tune. Installation by a professional is recommended, and any modification should comply with the relevant Australian and state vehicle standards. Always follow the manufacturer's instructions supplied with the product.

Do these parts suit both the WRX and the STI? Some do and some do not. Each listing names the chassis codes and model years it is intended for, so check those details before ordering.

What does a chassis code like VAB or GDB mean? It is Subaru's internal model identifier. VAB refers to the 2015-2021 STI and GDB to the 2004-2007 STI, and these codes are more precise than model year alone.

Will a part listed for a BRZ also fit my WRX? Only if the listing specifically names a WRX or STI chassis code as well. Many GrimmSpeed items are model specific.