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2015-2018 GMC Sierra 1500 325 CID
This creates a much stronger scavenging affect to help evacuate the cylinders during the exhaust stroke netting more power and torque
Mild Steel with Galphan coating
Note: Fits 2/4 wheel drive Crew cab and double cab models
Ext Cab/Long Bed
1967-1969 Dodge Dart Full Length Header Hooker Super Competition 5215HKR exhaust-system-parts 2015-2018 GMC Sierra 1500 325Overview With Hooker Super Competition the objective has always been to make the maximum horsepower and to put it at the optimum point in the power curve. It takes a lot of time and money to do the job right. We will sometimes spend up to 2 to 3 times more just to make the Super Competition header work only 5 to 10% better. That commitment to excellence has made Hooker Headers the winningest header manufacturer in automotive drag racing history.
