Porterfield Brake Pads for 2001 MERCURY GRAND MARQUIS Compound:R4-S At this time Power Packs

At this time Power Packs are sold separately and cannot be upgraded without the purchase of an entire kit

an OBDII X-Series Digital Gauge that reads and displays OBDII parameters and clears diagnostic trouble codes (DTCs)

Triples mount thickness by overlaying 3/16” steel onto the factory mounts

4L Hemi 8 CYL

Porterfield Brake Pads for 2001 MERCURY GRAND MARQUIS Compound:R4-S At this time Power PacksPorterfield Brake Pads for 2001 MERCURY GRAND MARQUIS 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