PRXB Exhaust Brake Kit – C40110 – Direct Mount 4 Inch Exhaust (Brake Only) All " In-Cabin On-the-Fly Power Adjustments via

In-Cabin On-the-Fly Power Adjustments via LED light switch

(Qty 2) Line for Cylinders 2 and 7 - Replaces GM Part# 97188723

so the fit just like the original

Works with mass air flow or temperature sensor model trucks Price includes applicable core fee

Part Number: 1715867

PRXB Exhaust Brake Kit – C40110 – Direct Mount 4 Inch Exhaust (Brake Only) All " In-Cabin On-the-Fly Power Adjustments viaProduct 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