Engine Valve Spring Seat 2009 Ford Mustang 75" pipes Cat-Back(tm) system by

75" pipes Cat-Back(tm) system by Borla(r) features a True Dual design which is unique in the industry

Red Line D6 will drop to no less than 6

Suitable for use on tubing measuring from 1/8" to 3/4"

Wound In House To Exacting Standards

Engine Valve Spring Seat 2009 Ford Mustang 75" pipes Cat-Back(tm) system byEdelbrock part #5771 Valve Spring Seat Cups for Edelbrock 390 428 Ford FE and 383 440 Chrysler Heads using valve springs #5792. These Spring cups provide a hardened barrier between the springs and the aluminum heads, positively locating the base of the spring to prevent unwanted spring movement. Sold in sets of 16.