Specifics and Features:
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: 3.5"
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.
1 x Set of exhaust header
All necessary hardware, bolts, and gaskets
100% Brand New
Professional Installation is Highly Recommended
Installation Instruction is NOT Included
Fits Small Block Chevy motors only. Will not fit Big Block equipped vehicles