Tuff Stuff Performance 11" Brake Booster - Dual Diaphragm - Black Powder Coat - GM Truck 1973-93 PH-MAC3 ZDDP) and superior oil film

ZDDP) and superior oil film strength from Penn Grade

our "bolt-on" components fit perfectly for a hassle-free installation

Exclusive CFD computer modeled air entry area delivers maximum velocity and accelerated air speed

this is an excellent replacement for Camaros & Firebirds with transverse mufflers

Decklid Mounting Kit

Tuff Stuff Performance 11" Brake Booster - Dual Diaphragm - Black Powder Coat - GM Truck 1973-93 PH-MAC3 ZDDP) and superior oil filmAvailable in beautiful chrome plated, gold zinc and a variety of colors. Single and dual diaphragm styles available in 7", 8", 9" and 11" diameters fit virtually all hot rods, customs and muscle cars. Includes 3 8" 16 mounting studs and nuts where applicable. Works with many stock mounting brackets and with Tuff Stuff bracket kits Product Features: Vacuum Tested To Ensure Reliability Tuff Stuff Performance Accessories provide you with the "Ultimate"