Am I correct in that the B18C non type R intake manifold has a dual intake length system on it?
Where as the Type R doesn't?
I was wondering what the reason for this is? After having a look inside my intake manifold however I see those butterflies being quite restrictive even at full open position, so I am guessing the ITR doesn't have them for more top end power, in the expense of less low end?
Would it be a good idea to get rid of these butterflies for more top end??
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