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- BD Power - GM Duramax LB7
US Diesel Parts - BD Power - GM Duramax LB7
Incorporating BD's exclusive Variable Orifice Technology, the BD brake provides up to 150 retarding horsepower throughout the engine's RPM range - not just at high RPM like other brands. The rugged, cast-iron housing incorporates BD's exclusive alumibronze bushing and piston ring-sealed, stainless steel butterfly shaft that has proven to stand up under the harsh, high-heat conditions of the exhaust environment. The BD exhaust brake is the most widely recognized exhaust brake in the industry for one simple reason: It's the best!