| Here is an example of what can be done with stock manifolds. These are NOT MINE (I wish)...they are Mike Kojima's. This is a big reason why he has such quick spool with Sport 650's. These manifolds have been welded in some of the problem areas to improve flow. For those of you that have ported manifolds before...you know where I'm talking about. All work was done by Mike Smith. Spent 45 minutes on the phone with him on Friday...that dude has some serious go-fast knowledge 




I'm hoping to do something similar, but not as aggressive. Mike Smith said this was overkill for Sort 650's. These manifolds were created for much bigger future turbos
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