These gaskets have been dyno proven to add up to 3-5 ft lb of torque and 5 peak HP across the entire power band on a completely stock Type-S. The base model manifold is made out of 70% out of plastic so gains will not be as high.

The reason for these significant gains is that a very thin metal gasket was used which transfers a large amount of heat from the head into the intake manifold, which in turn heats the incoming air.

Fits:
02-04 RSX Type-S
05-06 RSX Type-S
02-04 RSX: 5-Speed
05-06 RSX: 5-Speed
02-04 RSX: Auto
05-06 RSX: Auto