GFB Whistling Trumpet (suits all valves) 5702 Performance Fuel Rails & Fuel Rail Kits } PISTON CODE ROD CODE

} PISTON CODE ROD CODE ENGINE CODE CLIPS IRPP153DA IRPR004 GTA CIRP22 N° OF CYL STROKE COMP

Adding power always requires more fuel

SKU: SP6063BLK

allowing the system to vent to atmosphere

} PISTON CODE ROD CODE ENGINE CODE CLIPS IRPP067DA IRPR320 -- CIRP23 N° OF CYL STROKE COMP

GFB Whistling Trumpet (suits all valves) 5702 Performance Fuel Rails & Fuel Rail Kits } PISTON CODE ROD CODEThe 5702 can be used in place of the standard trumpet on all GFB valves, and will make the whistling sound more readily than the 5701 (high boost and RPM is required to get the whistle from a 5701), and at a slightly higher pitch.? Like the 5701 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. 5702