Just got my Boost Logic exhaust system installed. I'm having some fitment issues with the rear part of the exhaust. I had the fitment on the tips looking pretty decent, so I decided to take it for a test drive. I noticed a rattling sound, so I pulled over and noticed that the rear part of the exhaust still had a decent amount of play and the left tip melted into my diffuser. I'm second guessing myself if I did the install correctly, but it was pretty straight forward and I triple checked all my fittings. I know I did something wrong, I'm just not sure what it is. The exhaust came with some small rubber tubes and I can't figure out what they're for. I feel like the play is coming from the rubber grommets on the rear exhaust hangers. I don't remember the stock exhaust moving around that much after I did my downpipe install, so I'm thinking I did something wrong reinstalling the exhaust hangers. I did the install on a lift, and I checked for exhaust leaks and I didn't have any, so I know all my exhaust brackets are tightened down good. Any ideas would be appreciated.