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      02-21-2011, 02:04 PM   #46
-c-'s Avatar

Drives: X5, Cooper S, Z4, i3,
Join Date: May 2010
Location: wheaton, il

iTrader: (5)

well im geussing as long as you get the manifold of the 2.5SI and not the 3.0 you should be fine. Normally used manifolds already come with the disa motors so keep the others for spares, you will also need a tune taking advantage of the manifold so you will want to take it to a dyno someware and have a custom tune for your car so it more resembles the map of the SI vertion of your car. then you should get close to the numbers if not at the numbers of the SI.

dyno results show an increase of 10HP gain on the 3.0I with just the manifold swap and no dyno tuning.