PORTERFIELD R4S REAR BRAKE PADS BMW M3 & M4 F8X Model_FX X5 · RC4 caliper – 4

· RC4 caliper – 4 piston forged 2 piece optimised caliper

857 Software changes are NOT required to run this upgrade

GTS/CS Transmission Flash INCLUDED for DCT equipped vehicles

The corrosion-resistant Satin Black Anodised Aluminium Bracket is optimised for high stress and deflection whilst withstanding high torque loads but is designed to function equally on standard or modified vehicles with either a single OE bush or dual aftermarket bushes

CT Carbon full replacement side skirts for the new BMW M3 G80 in MP style

PORTERFIELD R4S REAR BRAKE PADS BMW M3 & M4 F8X Model_FX X5 · RC4 caliper – 4Porterfield R4S Rear Brake Pads BMW M3 & M4 F8X models, steel brakes only. Porterfield rear pads, available in R4S for fast road use or R4 race compounds, as used on the Whifbitz Time Attack cars. The R4S fast road compound: For high performance and heavy duty street conditions the Porterfield R4 S compound remains a top performer in the realm of street performance brake pads. With the R4 S compound giving a friction level up to . 41. This is an