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The Big Bubba is the largest-piston dump valve in the Turbosmart range outside of RacePort/ProPort/PowerPort, with a 50.8 mm (2-inch) piston and a supported capacity above 800 hp. It builds on the proven BOV5 design, scaled up to meet the needs of engines boosted by positive-displacement or centrifugal superchargers and large turbo-diesels, which demand more flow than a standard BOV5 can provide. Aluminum V-band construction, no-removal cap-adjustable preload, and 4 spring options covering 7 to 21 inHg of opening pressure: the Big Bubba is reserved for serious builds, not an ordinary road car.
Aluminum inlet adapter for Turbosmart Big Bubba dump valves, connecting the valve's inlet to a 50.8 mm (2'') hose or tube. High-flow passage to make full use of the Big Bubba's 50.8 mm piston.
Mounting/adaptation part for custom installations.