Porterfield Brake Shoes for 1983 BMW 320i (Exc M Sport Brakes) Turbo Piping it's not just about the

it's not just about the car

If a tube fails

Pre-set damping for balanced street comfort and performance

If it will be visible when the bumper cover is removed

Custom turbocharged street and race builds

Porterfield Brake Shoes for 1983 BMW 320i (Exc M Sport Brakes) Turbo Piping it's not just about thePorterfield Brake Shoes for 1983 BMW 320i (Exc M Sport Brakes) Porterfield R4 Porterfield R4 Carbon Kevlar based brake pads were fully designed for heavy duty extreme motorsports use. Its one of the the few true motorsports competition pads available on the market today. The carbon based semi metallic R4 brake material allows the brake pad to absorb huge amounts of heat and dissipate it quickly and evenly over time. The Carbon Kevlar material also