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Ships within 48 hours · Estimated delivery Aug 24 - Aug 29
2003-2009 GMC C4500 Topkick
38'' diameter opening
3/8 in NPT Outlet
Silhouette
GM Fullsize SUV / Truck 2014-18
Flowtech Afterburner Thrust Toobs Header Extension (Pair) - 3-Bolt - 3" x 12" Radiator Cooling Fan 2003-2009 GMC C4500 TopkickAfterburner 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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