Firewall doubler plate to strengthen firewall where the brake booster & master cylinder mount.
Features enlarged opening to clear a variety of boosters including late model boosters that are popular upgrades on GM muscle cars.
Fits popular GM muscle cars such as 67-81 Camaro/Firebird, 68-74 Nova, and 64-72 Chevelle/Cutlass/GTO/Skylark. Will work on any other GM vehicles with this brake booster/master mounting pattern.
Made in USA