aFe Twisted Steel Headers (48-48023) boost flow and power in 2007–2011 Jeep Wrangler JK V6 3.8L with direct bolt-on fit and stainless steel construction. Designed to outperform factory manifolds, these headers feature 1-1/2" 14-gauge 409 stainless steel tubing and 3/8" thick flanges for a leak-free seal and maximum durability. True mitered collectors are used instead of formed collectors to eliminate dead space and improve exhaust pulse control, helping your engine breathe more freely. The result is a gain of up to +6 horsepower and +6 lbs. x ft. of torque, along with improved throttle response and sound. These headers retain stock catalytic converters and require no cutting or drilling for installation.
Key Features :
Dyno-tested gains of +6 horsepower and +6 lbs. x ft. torque
14-gauge 409 stainless steel construction for long-term durability
Mitered collectors reduce turbulence and increase exhaust velocity
3/8" thick flanges prevent warping and ensure a reliable seal
Retains factory catalytic converters for emissions compatibility
Direct bolt-on design with no cutting or drilling required
Compatible with spark plug wire boot protectors and gasket kit (sold separately)
Technical Notes:
Not CARB exempt. Not legal for sale or use in California or on vehicles registered with the California Department of Motor Vehicles. aFe recommends spark plug boot protectors (P/N: 48-90001) and gaskets (P/N: 48-90004) for optimal installation.
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