SKU: SKU: PFF76-923
The PFF76-923 Upper Gearbox Mount Insert is an affordable and easy-to-fit bushing insert made from our yellow 70A durometer vibration-absorbing material, stiffening the OEM upper gearbox mount. This reduces twist of the engine under acceleration and during gear changes, giving the pedals a more direct feel and reducing wheel-hop, letting you get the power down that little bit quicker. For milder applications PFF76-923 can be fitted on it's own, but will perform most effectively when fitted with our other Corolla GR powertrain inserts (PFF76-920 & PFF76-925) as a full set. There will be a minor increase in NVH when stiffening the powertrain mountings.
Toyota GR Corolla Upper Gearbox Mount Insert — PFF76-923
Vehicle Fitment: GR Corolla (2023-2025)
Available variants: PFF76-923 (Street), PFF76-923BLK (Black Series)