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Ships within 48 hours · Estimated delivery Aug 29 - Sep 3
3/8 in NPT Outlet
2003-2009 GMC C4500 Topkick
655" OD and a
Black-Tread
increased compression advised
Flowtech Afterburner Thrust Toobs Header Extension (Pair) - 3-Bolt - 3" x 12" Radiator Cooling Fan 3/8 in NPT OutletAfterburner Thrust Toobs used with open headers are designed to complete the system and squeeze out extra horsepower and torque. Designed to bolt behind any three bolt header collector and are made from durable 16 gauge tubing. Flowtech Performance Exhaust was founded in 1994, by exhaust market expert Gary Biggs, with the mission of delivering high quality performance exhaust at a great value. The mission was successful and in less than two decades
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