I have a 97 jeep grand Cherokee orvis with a 5.2 v8 its all wheel drive the when I drop it into reverse I hear a pretty audible rattling sound from the muffler and seeing as its stock I assume its shot. my question is here in ohio 0-35mph has a 70db limit and 79 for over 35.
Some good advice Jason and a V8 Orvis with running boards and a glasspack just doesn't sound (pun) right! Also agree on the rattling noises which often aren't the inside of the muffler coming apart.
It may be time to invest in a new exhaust if you're still running OE. You can use the below discount codes for knocking the prices down quite a bit. Split up the online orders and TRT41 is a good one ($40 off $100+) as is TRT37 ($30 off $75+).
im not trying to put a permanent setup on atm just trying to make it sound a little better as a temporary fix as im pretty broke in the last month and a half ive put on a new water pump, radiator, fan clutch, fuel pump and a few odds and ends ive bled over 1200 bucks getting it to run better I really don't have 50 bucks to spend even on a cheap regular muffler and if its the cat rattling im tempted to just take it off and run a straight pipe or gut the interior of the cat and put it back so its just a cat looking shell.
being as broke as I am atm an 18dollar glasspack at my local muffler shop is a lot more doable than a 45 dollar dynomax(after the codes uniblurb provided) my orvis runs perfect smooth and clean it just sounds like im backing up a 1980s ford. I also believe there may be a leave in my muffler itself this morning it was cold enough to see the exhaust and it appeared as though some exhaust was coming from under my driver side rear door which is where my muffler sits
If you're that broke why don't you go to a local jy/pick-n-pull and buy/remove a half-new looking muffler similar to OE? I'd be taking some measurements on your old one 1st and believe it would be a whole lot better than a $18 glass-pack. Sounds like you couldn't even get a used cat for what you're willing/able to spend since trade-in value for the metal may be higher. Not permitted to talk about gutting/removing cats here since it's against Fed regs. Think I'd just go for the muffler if you know/can feel where it's leaking while that's what's making the noise. Good luck.
I would either hold off until you can get a new converter + muffler, or go to a junkyard and grab them as Uniblurb suggested. You won't like the obnoxious sound of a glass pack, and you're losing torque/back pressure if you delete the converter.