These are currently only built to order.

This manifold was intended for boosted race application. It should not be used for NA engines without 9000+ rpm and dry sump.

Contact us if you are interested in having one of these built. Some of the specifications can be adjusted, depending on application. When we build these, $1000 deposit is required up front. Remainder is due after completion. 12+ weeks production time.

This manifold has seen 699rwhp with stock displacement on pump gas with 7500rpm limit.

This manifold has seen 844rwhp with stock displacement and race fuel with Greddy 20g turbo system and modified intercooler/piping configuration. Horsepower had not yet began to fall by redline. Turbos were the limiting factor.

A prototype version of this manifold that retained factory throttle body location has seen well over 1000rwhp in the Sound Performance 350z, holding power beyond 9000rpm.

A custom version was built with slighter longer runners, a LS2 throttle body flange, and a lifted throttle body location (client's engine was lowered and moved back, so no hood clearance issues). Since the front was much taller, we were able to taper down the plenum towards the back. This is a NA 9000rpm dry sump racing engine. Awaiting results.