Audi A5 / S5 / RS5 Rear Diff Front Bush Insert PFR3-741BLK Volkswagen > Polo > 1.4 GTI Dual Channel Knock Control -

Dual Channel Knock Control - Synchronised to engine position with high speed digital filtering for accurate detection

which helps to reduce turbulence and maximize flow into the engine

In addition to out performing the originals

great looks and the ultimate in sound

Ultra High Flow G-Series Compressor Wheel

Audi A5 / S5 / RS5 Rear Diff Front Bush Insert PFR3-741BLK Volkswagen > Polo > 1.4 GTI Dual Channel Knock Control -Audi A5 S5 RS5 A5 S5 RS5 (2007 2016) Rear Diff Front Bush Insert PFR3 741BLK This is an insert to fit into the original bush to minimise the movement of the diff under acceleration. NOTE: Price is for CAR KIT, NOT per bush Powerflex price their bushes individually, but we have combined the quantities to make it simple!