Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

Mrev 2 + spacer.. Hiss sound normal?

Old Jun 20, 2007 | 11:31 PM
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Mrev 2 + spacer.. Hiss sound normal?

For all of you who have the Mrev, 5/16 spacer combo. I have the copper Iso thermal kit btw. I was wondering if you all are getting a slight but audible high pitched hiss whenever you press the gas. Is this normal? Doesn't seem to do this in hot weather.

So yeah, I got my Mrev 2 and 5/16 spacer installed yesterday. It's been hot in MD for the past few days 90 plus-ish. I could feel slight gains, which was great, but honestly was feeling a lil bit underwhelmed.

Well, that all changed, quick. I just went out tonight (10PM) to make a quick 7 eleven run. OMG my car has finally awakened. I mean I knew that heat and humidity was robbing me of power.. but wow. Mrev 2 plus 70 deg weather = heaven. Now the car pulls like I've always thought it should've from the factory. Great stuff.
 

Last edited by ghost30; Jun 21, 2007 at 12:52 AM.
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Old Dec 27, 2007 | 03:23 PM
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do you have an intake?
 
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Old Dec 27, 2007 | 04:06 PM
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how is the car running at idle seems like there might be a vac leak some where
 
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