Is this metallic noise normal or no? (997 GT3) - 6SpeedOnline

Aug 8, 2012 | 06:41 PM

Overlake

Thread Starter

Registered User

Joined: Nov 2011

Posts: 119

From: Seattle

Rep Power: 19

Is this metallic noise normal or no? (997 GT3)

I have the GMG bypass on it now, but it made the noise with the stock center muffler as well. It only makes the noise when the car's been driven for a while (i.e. fully warmed up).

Thanks!

Last edited by Overlake; Aug 8, 2012 at 07:12 PM.

Aug 8, 2012 | 07:46 PM

m5trol

Registered User

Joined: Dec 2011

Posts: 48

Rep Power: 26

No, it isn't.

Aug 8, 2012 | 10:15 PM

RAudi Driver

Registered User

Joined: Feb 2012

Posts: 330

Rep Power: 39

That sounds terrible. I think you have an exhaust leak somewhere.

Aug 9, 2012 | 08:49 AM

Vader996GT3

Registered User

Joined: Jul 2010

Posts: 26

From: Orange County, CA

Rep Power: 17

Vader996GT3 is infamous around these parts

My guess would be either exhaust leak or rattle. Check the heat shielding around the bumper as it may have gotten bent when the GMG bypass was installed.

Aug 9, 2012 | 01:50 PM

D-UberCars

Registered User

Joined: Apr 2006

Posts: 1,007

From: Seattle, WA

Rep Power: 73

Sounds like part exhaust leak and part mechanical rattle (shielding?). Take it to MU, (or number of good shops in Seattle) have them get it on the lift and take a look at it.

Aug 9, 2012 | 02:19 PM

Overlake

Thread Starter

Registered User

Joined: Nov 2011

Posts: 119

From: Seattle

Rep Power: 19

my indy suspects that it's the vacuum flap and that it is not an engine noise. when you push the sport button on/off, you'll hear this clink as the vacuum actuates.

taking it in tomorrow. thanks!