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Variable vane exhaust brake for Chevy Duramax LBZ (2006–2007). BD’s VVB electronically closes turbo vanes to develop exhaust backpressure—creating up to 130 retarding horsepower—and includes a rotary switch with multiple modes plus integration with cruise control for automatic speed management. The system plugs into factory ports for straightforward installation and adds engine retarding without separate heavy plumbing.
BD Diesel Exhaust Brake Variable Vane - Chevy 2006-2007 LBZ Duramax
