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Old 03-14-2010, 07:06 PM   #1
1999black323i
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Join Date: Jan 2010
Location: California
Posts: 166
My Ride: 1999 323i
Cold air intake question?

So i did do some research and talked to mechanics, heres what one told me... dont replace the whole cold air intake but just replace the filter with a K&N one and you should gain about 5 HP..... is this about right? do you guys think i should replace the whole thing? let me know please
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