mine is flat on the bottom now. and blows 6" spark streams while going down the highway with 2 people in the car
my repair was sliding a 2.5" peice of straight stock exhaust up in and welding to the cone inside "no muffle now" it worked then i welded to the outside rim wut was left of it.
hehehe i broke it off getting into the driveway... the car actually high centered ontop of it. so the weight of the car broke the epoxy. i think i;ll have to get a new axle back section that goes over the lca... hopefully there;s enough space there.
while i was out testing it it scraped the ground every bump no matter how slight. the car moving down the smallest bit and the not perfect smoothness of the road make the thing scrap everywhere. it was annoyin hearing it scrape that much so even if it were still on the car i;d take it off. also for the safety of other drivers i wouldn;t want it to break off and possibly have someone hit it. so for now i;m going mufflerless again.
the epoxy worked pretty well, i;m sure the cold weather affected it somewhat so i think in better conditions it might have held up. but yeah. muffler goes back onto the shelf.