Npp exhaust rattle... Again...
I finally took my 3 month old ss with the green marking underneath the exhaust into the dealer due to the npp exhaust rattle. They replaced it with a supposed newer, "non-rattle" version... Well, the second day I got my car back, the "new" version rattles more than my old one when the valve is closed. I asked them to use the epoxy patch method as the official "band-aid" fix for now; they claim this newer version is different than my old version and cannot be fixed with the epoxy. They are stating that GM will not authorize another exchange or give me an older version for the band aid fix. I have to wait till they come out with a better version said GM. Been using track mode only to make the rattle go away.
Has anyone else gotten this supposed "newer version" exhaust? Are you having terrible rattling with the valves closed like I am? How's the epoxy fix been working for you if you had it fixed that way?
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