Kooks' headers allow for exhaust gasses to exit your engine's cylinders much more efficiently than your stock exhaust manifolds, giving your truck a average gains of 20-35 horsepower after their mandatory custom tuning This Y-pipe features Kooks' latest "GREEN" 48-state legal and EPA-Certified catalytic converters and allows you to run powerful Kooks long tube headers and their required custom tuning while still being able to pass emissions testing in any state that has not adopted CARB air pollution guidelines. Made in U.S.A

kooks 2010-2014 FORD Raptor Headers & "GREEN" Catted Y-Pipe 6.2L



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