"for those connecting cai hose directly to ur oem airbox, try not to face the inlet of ur cai hose towards rushing air... rushing air pressure coming in from outside is so great that it can cancel off the vacuum pressure inside ur intake manifold, causing it to lose power at high rpm... ..."


I dun get u....what vacuum ur talking abt? is there vacuum in the intake section??

sorry to trouble again...but how the vacuum exist...as a result of what? can u pls explain becoz im going to do somthing wif the hose of urs to my car....scare might kill the engine.Where the vacuum from?