Note: NOT legal for use in California and other states adopting California emission standards.
This bold new manifold is designed for Gen IV engines with LS3, L92 and L76 rectangular port cylinder heads. The Cross-Ram LS3 is ideal for anybody looking to combine great looks and outstanding performance between 1,500 - 6,800 rpm. The manifold is designed to fit under the hood of C6 LS3 Corvettes. This dual-plenum design features 12-3/4" long runners with flanges that will accept two, 90mm GM LS3 throttle bodies. The unique cross-ram dual-plenum design is ideal for twin turbo applications. When matched with high flowing air filters and inlet tubes, the dual-plenum system gives neck-snapping performance with plenty of options for engine builders and tuners. Dyno testing resulted with gains of 12 horsepower and 25 ft-lbs. of torque over a popular plastic aftermarket manifold.
This manifold is available with a black/grey or red/grey powder coated finish with machined highlights for great looks in the engine compartment. A -6 AN fuel rail kit is also available separately to complete this installation.