(4.0L (ALL) 1 1/2" NOTES;16) Built for the Jeep Wrangler (91-99)...
JBA Cat4ward Headers are an upgrade for today's emissions controlled cars, trucks, and SUVs.
Engineered with heavy duty features and patented technology, these headers deliver performance gains without compromising your vehicle's emissions equipment.
A set of precision made JBA Cat4ward Headers increases your engine's breathing ability and overall efficiency.
The result is an increase in horsepower and torque throughout the RPM range.
You will also improve throttle response, and in some cases, your vehicle's fuel economy.
NOTES;(3) INSTALLATION REQUIRES WELDING/MODIFICATION TO EXHAUST SYSTEM.(4) REQUIRES Y-PIPE.(6) USE BIG BLOCK FLAPPER VALVE FOR SMOG LEGAL APPLICATION.(10) SPARK PLUG BOOTS ARE CHANGED FROM STOCK.(16) DIRECT REPLACEMENT FOR FACTORY MANIFOLD, INSTALLATION HARDWARE KIT INCLUDED.(17) COMPLETE HEADER AND Y-PIPE OR DOWN PIPE SYSTEM, INSTALLATION HARDWARE INCLUDED.(18) INSTALLATION HARDWARE INCLUDED(20) PATENTED JBA RAMHORN HEADER(29) MATCHING MID-PIPES AVAILABLE(54) MATCHING H-PIPE AVAILABLE