There are no vacuum ports on the manifold.... vacuum comes from chamber that feeds behind the 6 throttle bodies. the only thing I would need is a place for the methanol nozzle.

as for bf.c , I could post this up anywhere I just didnt want to limit myself to BMW only shops. An intake manifold is an intake manifold, its no different for a BMW and to be perfectly honest, while there are many great fabricators, turbo intake manifolds are not commonly done on BMW's since they already run cast intake manifolds with equal length runners.

This type of manifold is generally reserved for high boost applications and the people with the most experience with high boost turbo system fabrication will not be working with many BMW's.. in this area its going to be supra's, Evo's, and anyone with RB motors. I dont think I know any boosted BMW in the area with a sheet metal intake manifold.

either way just wanted to get an estimated cost, sheet metal or otherwise... Needs to be able to handle around 25psi. Its not that I am running tons of boost, but the stock intake manifold is glued plastic and will come apart under anything more than 4-5psi.