i have a civic 98 ex bought a mugen cai off ebay (i know fake ****) what size bypass valve should i buy for it?

 

oh yea i havent recieve my stuff yet

 

typical intake is a 2.5" tube but some are 3".
if it's not said which size it is chances are it's a 2.5".

why are you wanting a bypass valve?

 

mugen made a CAI?? they had boxes similar to the Comptech Ice box...


as far as bypass...measure your pipe diameter and go from there.

 

should i measure the inside or outside diameter? which one is right?

 

i live in NY it always rains here i really need one man!!!

 

the pipe diameter... it should be either 2, 2.25, 2.5, 2.75 or 3 inches in diameter.

 

Outside.

 

I've had friends, me including, that have run CAI for years without issues (knocks heavily on wood). But to be honest, I've seen some similar results from regular K&N drop in's than full CAI's....

 

Don't waste your time or money.A bypass valve does nothing unless the filter is completely submerged in water.If it is the you have bigger probs than your intake.
I have a CAI on my Crx and a DIY CAI on my 5th gen hatch,live in NY and have had NO problems whatsoever.
Save your $$$