Wisefab Front Drop Knuckle Kit, Subaru Impreza / WRX / STI / Forester (WFGD3)

Front uprights for Imprezas and Foresters used in grip racing. Lowering upsets the factory geometry; these knuckles bring roll centre, bump steer and the camber curve back into range, with a 50 mm drop built in and a slightly quicker steering ratio.

Fits

• Subaru Impreza (GC), 1992-2001: Wisefab also lists GM and GF in this group
• Subaru Impreza (GF), 1992-2001
• Subaru Impreza (GD), 2000-2007
• Subaru Impreza (GG), 2000-2007
• Subaru Impreza (GE), 2007-2014
• Subaru Impreza (GV), 2007-2014
• Subaru Impreza (GH), 2007-2014
• Subaru Impreza (GR), 2007-2014
• Subaru Impreza (GJ), 2011-2016
• Subaru Impreza (GP), 2011-2016
• Subaru WRX (VA), 2014-2020: Needs the M20x1.5 rack extender WFGD3_610A
• Subaru WRX STI (VA), 2014-2020: Needs the M20x1.5 rack extender WFGD3_610A
• Subaru Forester (SF), 1997-2002
• Subaru Forester (SG), 2002-2007

Before you order

• Brakes: fits factory fixed 4-piston calipers only. It does NOT fit factory 1- or 2-piston floating calipers.
• Wheel bearing: use either the 2005-on STI 5x114.3 bolted bearing (28373VA000) or the 2007-2013 WRX 5x100 bolted bearing (28373FG000).
• Wheel speed sensor: either the 1992-2007 or the 2008-2013 type can be used; mounting plates are included.
• Steering rack: the included extender suits M16x1.5 inner tie rod threads. Pre-2003 racks with M14x1.5 threads need WFGD3_620A; 2015-type racks with M20x1.5 threads need WFGD3_610A.
• Minimum wheel size 17 in. Camber, caster, track and wheel backspacing stay as factory.

Highlights

• 50 mm drop from the knuckle for roll centre correction
• About 2 kg lighter than the factory upright
• Slightly quicker steering ratio than factory
• Bump steer adjusts with washers at the upright; CrMo spherical rod end replaces the factory outer tie rod
• Mounts for 5x100 or 5x114.3 bolt-on wheel bearings
• Adapters for STI or WRX shocks included