Porterfield Brake Pads for 1999 MERCURY GRAND MARQUIS - w/ Steel Piston Bull Boost Performance How often should I clean

How often should I clean or replace this filter

Are these pre-wired or do I need to source a relay separately

End to End Length: 27" Approx

Does this arrive ready to install or does it need prep

Central adjustable back panel with Velcro attachments offers complete range of fit allowing protection to be worn under or over garment

Porterfield Brake Pads for 1999 MERCURY GRAND MARQUIS - w/ Steel Piston Bull Boost Performance How often should I cleanPorterfield Brake Pads for 1999 MERCURY GRAND MARQUIS w Steel Piston 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