The Xcessive FD Lower Intake Manifold sports 4 secondary injector bungs. It has better flow balance and larger runners than the stock lower intake manifold. The stock 2-injector secondary rail may still be used with the other two injector bungs plugged (plugs included). A custom 4-injector secondary rail is available separately. Injectors sold separately.

This manifold has no provisions for emissions equipment, so it is sold for off-road use only. The manifold slightly rotates the upper manifold (~1/4 inch) so that you may need to modify your oil filler neck (usually, you can just move it a little and make it fit).