4-1 Stainless Performance Header Exhaust Manifold For 90-97 Hardbody Pickup/d21

  

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. Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends for Strength and Durability i.

Maximizing Smoothest High Exhaust Air Flow Rate. 4-1 High Performance Long Tube Racing Spec. Design, Produces Power Throughout Powerband. Inlet/ Outlet: 1.5"/ 2.5". TIG Welded CNC Machine Flanges. Increase High Flow Air, Instantly Gain 10 -15 Hp. 1 X Exhaust Manifold Header Kit. Hardware as Shown in the Picture Above. Professional Installation is Highly Recommended.

Installation Instruction is NOT Included. We provide and source the best products for almost all vehicles and trucks focusing mainly on aftermarket performance parts. We have a long positive history of loyal and happy customers to show for and I'm sure you will find a product fit for your vehicle easily! Some of the packages cannot be delivered to a PO Box.

Package will be held until a valid physical address is provided. The person that is purchasing this product makes the following representations and acknowledges and agrees to the following terms and conditions. This off-road race only product ("this Product") is designed and intended for use in organized, amateur and professional racing events, but is limited to closed-course racing and open-course racing that is formally sanctioned by a recognized racing organization involving the motor vehicle in which it is installed (the "Vehicle"). It is not for use on public highways or roads nor is it for recreational off-road use other than solely for competition purposes. Use of this Product for purposes other than solely for competition is a violation of federal law and may violate applicable state or local environmental, motor vehicle and other laws.

The User warrants that this Product shall only be used in sanctioned closed-circuit events. That use of this Product may make the Vehicle unfit or unsafe for the purposes intended or for any purpose and cause personal injury, property damage or death. That the installation of this Product, improper installation of this Product, use of this Product with other components or failure to use this Product in conjunction with other components, could result in or cause personal injury, property damage or death. THIS PRODUCT IS FOR COMPETITION RACETRACK USE ONLY. ALL OTHER USES ARE CONTRARY TO FEDERAL LAW.

This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Exhaust & Emission Systems\Manifolds & Headers". The seller is "kospeed2008" and is located in this country: US. This item can be shipped worldwide.

• Brand: KO Speed
• Placement on Vehicle: Front, Left, Right
• Manufacturer Part Number: KO44657S
• Interchange Part Number: KO44657S
• Superseded Part Number: KO44657S
• Color: Metallic
• Materials: Polished T-304 Stainless Steel Exhaust
• Thickness: 10mm Thick Exhaust Flanges
• Header Inlet / Outlet Size (IN): 1.5\
• Restricted States: California, Maine, New York