Porterfield R4 Rear Brake Pads BMW M3 & M4 F8X Model_F98 X4M Stage 2 E30: up to

Stage 2 E30: up to 26%HP / 26%TQ

THIS WILL ONLY FIT RIGHT HAND DRIVE UK MODELS

It is a convenient option that removes the need for using a laptop in the car when using bootmod3's features

Stage 2 Racegas: 33%HP / 45%TQ

Use only pH balanced cleaners (ie

Porterfield R4 Rear Brake Pads BMW M3 & M4 F8X Model_F98 X4M Stage 2 E30: up toPorterfield R4 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