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141 - I-Beam Extreme w/ARP Custom Age 625+
All Honda H22 Series Engines
Progress Tech 09-11 Nissan 370Z Rear Sway Bar (Tubular 25mm - Adjustable)
642in Bore 10:1 CR Piston Set
GFB Whistling Trumpet (suits all valves) Hardware 141 - I-Beam Extreme w/ARPThe 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.
