It has two bladders (dual diaphragm) giving it much greater stopping power than the smaller single units. An 8" Dual booster gives you 19% more stopping power than a 8" single, making it perfect for larger cars.
8" Dual Diaphragm Chrome Power Brake Booster Universal Chevy Ford GMC Street Rod
8" Dual Diaphragm Chrome Power Brake Booster Universal Chevy GM Street Rod Truck
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Leed Brakes PBKT6011 Power Booster Kit 8" Dual Booster Chrome
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8" Dual Chrome Power Brake Booster Universal Chevy Ford GMC Street Rat Hot Rod
