Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends for Strength and Durabilityi.e. Maximizing Smoothest High Exhaust Air Flow Rate
4-1 High Performance Racing Spec. Design
TIG Welded CNC Machine Flange
O2 Sensor Bung Insertion and Metal Gasket Included
Outlet Diameter: 3"
Piping Diameters: 4 X 1.75" Manifold Piping; into 1 X 3.5" Major Pipe
Increase High Flow Air, Instantly Gain 10 -15 Hp. Tq.
Engineered and Tested to Exceed Original Equipment Standards and Performance
Professional Installation is Highly Recommended (No Instruction Included).
1 x Set of exhaust header
All necessary hardware, bolts, and gaskets
70-87 CHEVY SBC 267-400 V8(except 1981 Chevrolet Camaro Berlinetta Coupe 2-Door 5.0L 305)