Porterfield Brake Pads for 2007 MERCEDES-BENZ R320 CDI Antennas APEXi proudly introduces the S1

APEXi proudly introduces the S1 Damper line

Hard panel construction with vertical bar configuration

Reduced Drag Coefficient - Optimized airflow management decreases aerodynamic resistance

Hard panel construction built to handle the road

Porterfield Brake Pads for 2007 MERCEDES-BENZ R320 CDI Antennas APEXi proudly introduces the S1Porterfield Brake Pads for 2007 MERCEDES BENZ R320 CDI 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