Porterfield Brake Pads for 2012 CHEVROLET IMPALA Police Compound:R4-S Modification: No vehicle modifications required

Modification: No vehicle modifications required

Direct fit for the specified model year and engine size

Sierra 1985 - 1986 GMC C2500 Base

These arbor/pilots also will work with the valve guide cutters used for shortening the guide for a high lift cam or installing a COMP Cams Teflon seal for oil control

Porterfield Brake Pads for 2012 CHEVROLET IMPALA Police Compound:R4-S Modification: No vehicle modifications requiredPorterfield Brake Pads for 2012 CHEVROLET IMPALA Police 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