High Performance Stainless Steel Header Exhaust
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
Specifics and Benefits:
Made of High Quality Stainless Steel Material with Computerized Mandrel-Bends for Strength and Durability
i.e. Maximizing Smoothest High Exhaust Air Flow Rate
4-1 High Performance JDM Racing Spec. Design
TIG Welded CNC Machine Flange
Inlet/ Outlet: 1.75" X 1.25" (4 x Oval Manifold Ports)/ 2.375"
Major Piping Diameters (Outer): 4 X 1.675" into 2.500"
Increase High Flow Air, Instantly Gain 10 -15 Hp. / Tq.
Lightweight Stainless Steel High Performance Piping
The most restrictive part of any exhaust system is the catalytic converter. The stock catalytic converter is meant to filter the flow of exhaust gases to reduce the amount of harmful gases into the atmosphere. Because of this, lots of potential performance is restrained. High Performance Piping eliminates the stock catalytic converter and reduce exhaust backpressure. The result brings out the vehicle's performance potential by giving it a free high flowing exhaust system.
Specifics and Benefits:
Increase High Flow Air and Maximize Performance,
Dyno Proven Increases Low End Torque and Horse Powers; Instant Gain up to 10 - 15 Hp. / Tq.
Made of High Quality T304 Polished Stainless Steel Material
TIG Welded CNC Machine Mandrel-Bent Tubing
Inlet Size: 2.25" / Outlet Size: 2.25"
O2 Sensor Bung Insertion; Metal Gasket Included
Stainless Catback Muffler Exhaust System
Upgrading vehicle’s exhaust system is a great way to build horsepower, free up trapped torque, and improve upon restrictive factory systems. The larger pipes, low-restriction mufflers, and tuned resonators of a well-designed performance exhaust system can make a world of difference on your vehicle. The net result is lower auto exhaust backpressure, more horsepower, more torque, and a much better sound.
Specifics and Benefits:
Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends for Strength and Durability
i.e. Maximizing Smoothest High Exhaust Air Flow Rate
High Performance Racing Spec. Design
Dyno Proven to Instantly Increases 10 -20 Horsepower/ Low End Torque
TIG Welded CNC Machine Flange for Resistance against Pressure and Corrosion
Aggressive Deep Sound while Ensures Smooth Exhaust Gas Flow
Increase Engine Output and Efficiency
Inlet Diameter: 2.50"
Front and Rear Piping Diameter: 2.50"
Outlet Diameter: 4.00" (Muffler Exhaust Tip with Removable Silencer)
100% Brand New
Professional Installation is Highly Recommended (No Instruction Included)
Package Includes:
1 X Header Exhaust System
1 X High Performance Piping
1 X Cat Back Exhaust System Kit
Hardware as Shown in the Picture Above
Application:
99-00 Honda Civic Si EM1
(Fits Models with 1.6L DOHC B16A2/ B16A3 l4 Engines ONLY)
Please Check Compatibilities for the Exact Years and Models
* Professional Installation Highly Recommended! No instructions included! * 
