Porterfield Brake Pads for 2009 BMW Z4 Roadster M3.2 SRQ Fabrications - Increase horsepower +6

- Increase horsepower +6

32/1 Tread/weight count

17 GPM) with less than 1-PSI pressure drop

Intake Duration: 292

Porterfield Brake Pads for 2009 BMW Z4 Roadster M3.2 SRQ Fabrications - Increase horsepower +6Porterfield Brake Pads for 2009 BMW Z4 Roadster M3. 2 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 allows the