This kit features Turbonetics’ Raptor blow-off / bypass valve. Polished pipe and blow off valve add to the touch of a detailed show car while the rolling diaphragm and 0-Ring sealed valve seat Raptor valve provides exceptional response between on and off throttles, preventing compressor surges. Discharge horn gives the extra loud “VRSHOOOOSH” to insure that everyone around you can hear it. Kit includes silicone hoses, and t-bolt clamps. Approx. install time 1 hour.