Cold air intake normal??? - Mustang Evolution

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Old 10-29-2012, 02:00 PM   #1
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Cold air intake normal???

Hey guys, I have a high pitched whistle while I'm on the accelerator coming from what sounds like the cai. I first thought it was because of my maf not lining up with the cai properly but I taped it off really well n saw no improvement. Today when I was checking out my throttle body I noticed a lil piece on my cold air intake and it looks like it was put on to plug a hole. How I didn't notice this before is beyond me but if anyone could tell me if this I factory or was added on my car and could b making the noise it would b a big help thanks

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Old 10-29-2012, 02:05 PM   #2
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That's how mine is as well. I believe you have to plug it in because there is no other connection that would go in there

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Old 10-29-2012, 02:36 PM   #3
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Most CAI's make high pitch "whistle"... if your car still runs great, and if you installed it correctly... then you are just hearing the CAI doing it's job, and there's nothing to worry about.
*01 Cobra, 4.6L, P&P heads, Stage 3 comp cams, MAC LT headers, O/R Hpipe, Bassani catback exhaust, Too many bolt-ons to list..., 4.30 gears. (364 rwhp/ 330 rwtq)
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Old 10-29-2012, 08:56 PM   #4
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One of the OEM CAI's design functions--it is a CAI, and a pretty good one at that; good enough to get me to 262/305 rwHP/lb-ft with a lousy paper filter--is to minimise intake noise. Aftermarket intakes are no so constrained so you get to hear the raw intake noise...
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Old 10-29-2012, 09:58 PM   #5
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that hole is for a temp sensor...earlier model GTs have them whereas later model new edges have them built into the maf so the hole gets plugged.

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