Porterfield Brake Pads for 1972 MERCURY COUGAR w/Front Discs Compound:R4-E Straight design without catalyzer =

Straight design without catalyzer = Power Up

LS 2008 Chevrolet Tahoe Z71

XLT 2009 - 2010 Ford F-250 Super Duty Cabela's 2008 - 2010 Ford F-250 Super Duty FX4 2005 - 2010 Ford F-250 Super Duty Harley-Davidson Edition

don't forget the valve seals--COMP Cams hasn't

5/16" w/Recess 618-4 - SUper Valve Locks

Porterfield Brake Pads for 1972 MERCURY COUGAR w/Front Discs Compound:R4-E Straight design without catalyzer =Porterfield Brake Pads for 1972 MERCURY COUGAR w Front Discs 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