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Variable vane exhaust brake for Ford 6.4L PowerStroke (2008–2010). BD’s system electronically closes turbo vanes to create retarding force—capable of up to 130 retarding horsepower—and can deliver elevated exhaust backpressure (features cite up to 70 PSI). It integrates with cruise control, offers multiple modes for automatic or aggressive downshifts, and installs using factory ports with a dash‑mounted switch.
BD Diesel BRAKE Variable Vane Exhaust - Ford 2008-2010 6.4L
