Hi all im new to the forum and was woundering if anyone can shed a little light on my annoying noise.

I havent had my 2003 STI long when and i decided to fit a cobra 3" cat back system it sounds great but since i took it out for the first run with the exhaust fitted it has developed a tinny vibrating noise which SEEMS to be coming from the passenger rear door.

I have taken the rear door card off and had someone in the rear passenger seat trying to pin piont the noise but have had no luck every thing is tight and the are no sloppy parts.

The noise is not always there just seems to be at sertain revs and road surfaces.

Its as if sertain frequencies of the exhaust are vibrating something.

Once into high gears sitting at 60mph-80mph there is no noise what so ever.

Has anyone come cross anything simlar?????

Cheers

JB

 

You could try sticking a sound deadening pad on the inside of the door skin and see if that stops the noise mate.

 

I thought of that so i stuck a towel in there and went for a spin still no joy.

 

Sounds like a loose baffle in the exhaust to me mate!

 

iv tried to talk myself into that one but the noise seems to be coming from the rear passenger door?? do you think the noise could transfer from the exhaust to the door area?