PRXB Exhaust Brake Kit – C44039 – InLine Mount 5 Inch Exhaust ADDITIVES With its sleek and low-profile

With its sleek and low-profile design

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PRXB Exhaust Brake Kit – C44039 – InLine Mount 5 Inch Exhaust ADDITIVES With its sleek and low-profileProduct Description Provides 50 percent More Braking Power at Lower RPM's. PRXB gives you the best holdback in the 1400 1800 RPM range (where you typically drive). The spring controlled pressure regulated mechanism on the exhaust brakes protects against engine overpressure. When the brake is deactivated, exhaust flow is unrestricted and won't interfere with power output. Patented 90 degree Non contacting Butterfly Valve is specially engineered to