would making the plastic air intake opening bigger help?

tttP5

Member
if the opening to the plastic air intake box under the hood was made bigger would that improve anything?

under the hood of the evo and sti the air intake holes are massive,,, like at least 8inch wide,,, ours is merely 2 inchs wide
 
You could make thes bigger if you wish, some members have done it and we use to do it alot on DSMs.
However the gain is barely noticeable/
 
You could - but it's still like squeezing an elephant thru. a straw....better to open up the entire intake line, and smooth the flow out as much as possible. Piping is your friend...
 
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