Quote:
Originally Posted by mikeokimster
Can you point me in the right direction of who exactly did the swaps? Our top end really suffers and this would greatly improve it.
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Your going to have to comb through the other three stage manifold thread.
http://www.e90post.com/forums/showthread.php?t=372973
Sorry I can't help any more. 2 members in there said they ran it without a tune, then in the original three stage thread from 2006 at least one member in there ran it without a tune as well.