WS6 Dual 9" Brake Booster

The long awaited return of the 79-81 dual 9" brake booster with the correct brackets to position the master cylinder in it's proper location and angle to prevent contact with the hood.
The kit comes with the booster, brackets as well as adjustable pedal push rod and two different mounting ends for stock or custom installations.
- 30% more vacuum assist for bigger cam applications.
- Improved power assist when pedal ratio is not optimal.
- Adjustable pedal push rod for custom adjustment and fit.
- Supplied with a clevis as well as eyelet pedal mount to fit multiple applications.

WS6 Dual 9" Brake Booster — Pro-Touring F-Body (0CB-100)

The factory dual 9" brake booster is back. Originally fitted to the 1979–81 Pontiac Firebird and Trans Am WS6 package, this remastered unit from Pro-Touring F-Body gives you the correct look for a restoration and the performance upgrade a serious build deserves.

The tandem dual-diaphragm design packs roughly 30% more vacuum assist into a shorter, tighter package than a single large-diaphragm booster. That means firmer, more confident braking on big-cam combos and setups where the pedal ratio isn't ideal — plus valuable extra clearance for tall valve covers and big-block applications. The compact footprint also tucks in cleaner, tidying up the engine bay.

This isn't booster-only. The kit comes complete with the correct mounting brackets to position the master cylinder at the proper location and angle so it clears the hood, an adjustable pedal push rod for a dialed-in fit, and two mounting ends — clevis and eyelet — so it works for both stock and custom installations.

Features:

• Direct replacement for 1979–81 Pontiac Firebird / Trans Am WS6 dual 9" booster
• Dual-diaphragm design delivers ~30% more vacuum assist for bigger-cam applications
• Added clearance for tall valve covers and big-block builds
• Lower-profile design cleans up the engine bay
• Includes correct brackets to clear the hood and locate the master cylinder properly
• Adjustable pedal push rod for custom fit
• Two mounting ends (clevis + eyelet) for stock or custom installs