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Turbo vs Na intake manifold

midnightsaint

New member
Joined
Mar 31, 2014
Location
Tulsa
I have been searching around. I have not found any info on this subject. Is there any difference between the the NA/turbo intake manifolds?
 
As stated, the B230 FI manifolds are the same, turbo or NA.

There can be minor differences though, but they're this; EGR port, CSI port. Some manifolds have both, some have none, some have one or the other. All depends on which variant of LH and which emissions package you have.
 
I don't think anyone has done a back to back dyno test, but the N/A intake strictly from a design standpoint is WAY better than the stock B21FT manifold, and even better than the B230 manifold (longer equal length runners, an actual plenum).

It's an easy modification, and definitely worthwhile if you've still got that craptastic pancake B21FT intake.
 
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