(polished shown)

The Power+Plus CrossWind manifold is similar to the 52020/52021 above but features an open area under the plenum and port runners. This allows air to pass through this area cooling the intake charge which produces more power and torque. The new CrossWind Manifold is a special version of the 52020/52021. While it is the exact same height, it features an open area under the plenum chamber. This provides for a flow of cooling air, which keeps the temperature of the air/fuel charge lower thus producing more power and torque. The interior plenum and port design are identical to the 52020/52021 due to the special design.

Note: These manifolds are not legal for sale or use on any pollution-controlled motor vehicles.