so i have this odd problem with my exhaust ... i was driving through some construction area late at night and hit some pretty bad dips going bout 35 which was the posted (plus i was kinda in a rush) and heard a couple of ding sounds hit the bottom of my car ... i figured i scratched up my cat or exhaust pipe and didnt bother to check it right away ... after a while (meaning a half hour) my exhaust started getting louder and louder and finally i heard it mostly coming from below me ... i pulled over to find that i didnt just scratch it but knocked all the nuts out and so my exhaust was hanging loose on the bolts at an inch away and i was running open header out of my cat ... i decide to go back and try for find the 3 nuts that fell off and ended up finding 2 of them ... this time i used a torque wrench and made sure that this time they wouldnt fall off and check to make sure at least once a month ... so i guess my question is where can i find the right nuts to fit on there cause ive tried so many different size nuts that look just right but they dont fit at all ...

 

bring the nut you have now, and match it up at a autoparts store. There should be one that is the same size

 

bring the other nuts, and go to home depot. they can help you match it up there. it should be a 10x1.5 or 10x1.25

 

i tried that but the nut has some kinda of washer connected at the end that makes it kind of unique ...

 

you mean its a flanged nut. they should still have them there. if not a normal locking nut will work..