Description: Getting more air into your engine and more exhaust out is the key to a performance motor. That's where exhaust headers is significant as the first revenue of an exhaust system. Exhaust performance headers manipulate the air flow with the performance-robbing exhaust manifold that came with your car. Headers provide each cylinder with its own mini exhaust pipe, which means exhaust headers prevent interference among cylinders; thus, the backpressure that occurs in common exhaust manifolds. When cylinders don't have to fight with each other to expel their exhaust, they can put more power through the wheels, pushing the vehicle. Combining with a high performance cold air intake, and a cat-back exhaust system, a header system removes all restrictions of your engine, then, it is able to perform at its full potential 100% brand new, Never been tried or installed Made of High Quality T-304 Stainless Steel Material Inlet/ Outlet: 1-1/2" OD/ 2-1/2" OD Black Color 4-2-1 Full Length Header Design Replaces OEM Manifold TIG Welded CNC Machine Flanges 2.5"-2" OD Weldable Collector Flange Increase High Flow Air, Instantly Gain 10 -15 Hp. / Tq. Professional installation is highly recommended Installation Instruction is NOT Included Package including: 1 X Exhaust Manifold Header Hardwares such as Gaskets and Bolts as Shown in the Picture Above Fitment: 89-94 Geo Tracker 1.6L 85-95 Suzuki Samurai 1.3L 89-94 Suzuki Sidekick 1.6L For Exact Years and Models, Please Check Compatibilities