Porterfield Brake Pads for 2011 INFINITI G37x Coupe w/Sport Pkg Compound:R4-1 A stainless steel spline insert

A stainless steel spline insert addresses one of the most common failure points on both cast and billet aluminum systems — preventing the spline wear that causes sloppy shifts and eventual transmission damage

written from the ground up

Color: Black with dark blue accents

Will this work with my stock catalytic converter

Porterfield Brake Pads for 2011 INFINITI G37x Coupe w/Sport Pkg Compound:R4-1 A stainless steel spline insertPorterfield Brake Pads for 2011 INFINITI G37x Coupe w Sport Pkg 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