Porterfield Brake Pads for 2018 CHEVROLET CORVETTE Grand Sport Compound:R4-S Bolt-on quarter window louvers add

Bolt-on quarter window louvers add attitude and block light without cutting or welding

From John Hale's Nostalgia Funny Car to countless Pro Mod cars

Line up the housings with your existing openings and secure with the mounting brackets provided

Available lens options

Featuring high-grade ABS materials

Porterfield Brake Pads for 2018 CHEVROLET CORVETTE Grand Sport Compound:R4-S Bolt-on quarter window louvers addPorterfield Brake Pads for 2018 CHEVROLET CORVETTE Grand Sport 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