Thread: wassup with the engine sound on the 325i?
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      10-23-2005, 04:32 AM   #20
Xens
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Quote:
Originally Posted by skimo
ehh..whats "CAI" ?

i think you are right, it is the engine sound more than the exhaust...kinda has this sound as if you are going in reverse !! whinning stuff....
I think CAI is cold-air intake.
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