The most restrictive part of any induction system is the factory intake manifold. Knowing this, Skunk2 Racing went to great lengths to design and manufacture an appropriate aftermarket replacement. Skunk2 Racing's single stage intake manifolds are designed to maximize flow as well as increase the effects of wave scavenging at each engine's key operating RPM range. Optimum power gains are seen at mid to higher RPM ranges, without sacrificing low end torque. Each manifold is designed to use all the stock sensors and auxiliaries.