GFB Whistling Trumpet (only for Stealth FX and WRX Hybrid) 1981-chevrolet-luv-esi6315932 50 4376 2 Tail Pipe

50 4376 2 Tail Pipe Quantity Dual 4370 No Type Axle-back 6014 No 2126 Not Applicable Warning California Proposition 65 Pipe Color Black Drive 2WD

Fasteners and Fittings Adapter AN Size ( A ) 4 AN MALE Adapter NPT Size ( B ) 1/8 NPT MALE Adapter Type AN to NPT 90 Deg

bolt-on exhaust cut-out for 2

tools and equipment

May Cause Slightly Harsher Ride Compared To Stock Springs

GFB Whistling Trumpet (only for Stealth FX and WRX Hybrid) 1981-chevrolet-luv-esi6315932 50 4376 2 Tail PipeThe 5701 can be used in place of the standard trumpet on GFB valves (Part numbers T9003 & T9503), and will make a whistling sound. However, it is necessary to run the valve so that all (or most) of the air vents through the trumpet ? Respons valves will typically not generate the velocity required to whistle when set to 50 50 venting.