High pitch whistle on acceleration

Thanks, so I am going to guess these are universal. So the link I posted for Advanced Auto Parts. Is the correct one ? I hope this finally fixes it. I already had it replaced once at the dealership (under warranty)and it came back 30k later (out of warranty). Dealer said they would not pay to fix it again. Ordering the part and will use Midas to fix it. Thanks for all your help !

ConvertibleGT67 said:

Thanks, so I am going to guess these are universal. So the link I posted for Advanced Auto Parts. Is the correct one ? I hope this finally fixes it. I already had it replaced once at the dealership (under warranty)and it came back 30k later (out of warranty). Dealer said they would not pay to fix it again. Ordering the part and will use Midas to fix it. Thanks for all your help !

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Check post 28 before you order.

Thanks, read post 28. Got it on order !!!

Midas says bracing has to be dropped.

tjd24 said:

Our '07 is a Hard-Top Convertible (HTC) and my Midas shop did not have to touch the bracing - they did the work in under an hour.

If your shop needs to call my shop their # is (973) 579-1030 - Midas Newton NJ.

Had this done back in April - their best welder did the work - owner will know his name.

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I took my G6GT Convertible in to get the magnaflow put on at Midas Lees Summit, MO. They said the bracing has to be taken off. And it would be 1 1/2 labor charge. I gave them the number of your Midas in NJ. Because you stated the bracing did not have to be taken off. When they called your Midas they stated they took off the bracing. I think they said they talked to a Jon. I am not sure if my Midas talked to someone in NJ that didn't really know. So I left and didn't have it installed until I get the full story. Can you give me a name of someone to talk too ?

Magnaflow worked

Ok, ordered my Magnaflow on Amazon. Went to Midas and had them put it on. Was charged 1 hour labor. And I have a hardtop. So they DID have to remove the cross supports to get to it. They showed me it was not possible to get to it with out removal. And it sounds awesome. No more whistling. All is good !

Sorry for beating a dead horse with a stick, but I have a 2005 g6 gt, and Its making the whining/whistling noise over 3500 rpm. Could I go a bit bigger on the muffler, so instead of the 4", maybe go up to a 5? Or would that not work?

Will exhaust clamps work instead of welding? Something like this?