so i got the muffler on sounds good out of the exhaust but i still get some slapping or clacking or whatever noise you want to call it coming from under the truck.
i think its coming through the cheap amazon y pipe i used, it seems to have some thin metal and i can hear the slapping exhaust through it, it sounds terrible and like a huge rattle.
i have some exhaust wrap left over from my last turbo kit, so i'm going to wrap the y pipe with it and hopefully dull the sound.
i have read a little bit on the interwebs about how this heat wrap deadens noise somewhat. we'll see. it sounds like shit when i hit a certain RPM and the slapping starts. also i just generally hear the exhaust more than i was expect even from thin walled headers.
its normal to hear more exhaust noise through headers, but this is a lot more.
annoying