06 - 13 LS7/LS9 Kooks Full Length "Stepped" Header

Stepped design melds the particular advantages of specific tube diameters: low end torque from 1 3/4" primaries at the flange, then opening up to 2" tubes for unrestricted top end.

Built by Kooks custom headers, manufactured from mandrel bent 304 stainless steel with 3/8" flanges and 3" collectors. Includes O2 sensor bungs and sensor extensions.

To complete installation, upgrade your Corvette's mid-section with Kook's crossover pipe, center section and hi-performance converters.