Quiet muffler : Walker p/n 18180 muffler if you are in search of a quieter muffler - similar to oem ....I have a slightly warmed over 10 to 1 350 with a small cam. I had a Dynomax 7 inch round and around 30 inch long muffler on it before and it was simply too loud.....sounded great at idle but was pretty loud from 1200 to above -annoyingly FULL of bass tones in the small cabin...So I was seeking a quiet OEM db wise muffler. This Walker sounds good at idle ,a tad louder than stock and BLESSINGLY pretty muffled and quiet going down the road at 70 mph etc. So if your looking for an ever so slightly (cant stress slightly enough) louder than stock this is your muffler . Im calling it a win . My system is a single 3 inch pipe from the y pipe,no cat,to a full factory length 3 inch tailpipe exiting at the stock location -passenger rear quarter panel. From what I can tell its a 3 chamber turbo muffler inside, 3 inch ends, single offset inlet , single center outlet around 29 inches overall long , oval case around 7 wide So I am officially O L D selecting my first quiet muffler lol. FWIW