Porting the intake manifold...
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Porting the intake manifold...
I am just curious of how far I should do this? Mazdaspeed7? What do you think? I am looking for good flow since I'll have a 2.5" downpipe/presilencer...should I go as far as possible? Or leave a lil....
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mulcryant
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Sep 9, 2015 05:24 PM