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Old 06-19-2013, 09:32 PM   #4 (permalink)
bmarcinczyk14
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Drives: 2010 370z 6spd Sport
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Quote:
Originally Posted by Jsolo View Post
You sure its not your intake making the noise?

Put the car on jack stands and have someone hold the throttle at more than idle. Trace the exhaust under the car to see if you hear or see anything. If not, it's probably your intake.
That's how I did it when I diagnosed it myself. Actually I stuck a rag in both the mufflers to create more pressure in the system and had someone rev it to 3k and felt around the flanges for any air coming out. After I fixed the leaks at the header/tp I really couldn't find any other leaks, but I know I hear one when I'm giving it throttle. I'm figuring the shops are more equipped and have a better way of testing, like a smoke machine or something
Quote:
Originally Posted by iceman21_23 View Post
which exhaust do you have? and which intake do you have? like Jsolo said some intakes make the woosh noise, and only when you step on it.
I have the stock intakes with fast intentions res. test pipes and catback exhaust.
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