I have a 2002 GMC Sierra 4.8L. Previous owner replaced original muffler with a Flowmaster 2-chamber 40 series. Too loud, too much interior noise. I replaced the 40 with a 3-chamber 50 series. A bit better, but still too loud and the interior noise is still very bothersome.
Does anyone have experience with Magnaflow on this vehicle and the corresponding level of interior noise?
I went to several dealerships seeking to purchase the original muffler. They do not sell just the muffler, only the enitre muffler and pipe assembly (around $500). I need just the muffler. Anyway, I couldn't find any internet aftermarket OEM shops who sell just the muffler either. Don't know what to do.
Any advice would be greatly appreciated.
I am trying to minimize, or even eliminate, all interior drone noise.
Does anyone have experience with Magnaflow on this vehicle and the corresponding level of interior noise?
I went to several dealerships seeking to purchase the original muffler. They do not sell just the muffler, only the enitre muffler and pipe assembly (around $500). I need just the muffler. Anyway, I couldn't find any internet aftermarket OEM shops who sell just the muffler either. Don't know what to do.
Any advice would be greatly appreciated.
I am trying to minimize, or even eliminate, all interior drone noise.