Porterfield Brake Pads for 2014 KIA OPTIMA EX Compound:R4-S Unlike other installs where speakers

Unlike other installs where speakers are drilled directly into doors—causing rattling

such as alarms

Application: GM Duramax 6

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Porterfield Brake Pads for 2014 KIA OPTIMA EX Compound:R4-S Unlike other installs where speakersPorterfield Brake Pads for 2014 KIA OPTIMA EX 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 brake pad