Unless of course you decide to veer away from a completely stock engine. In which case there generally is no heat crossover in the intake manifold (Edelbrock Performer aluminum intake is an example). The crossover would be beneficial for this purpose. It also helps with resonance in the exhaust system. The downside is that if the "X" is welded in and you need to remove the tranny it will generally require you to cut the "X" out.