Hey Guys, i just installed the Skunk2 Megapower Cat Back exhaust for my r18 yesterday and today i noticed vibration from somewhere in the console, followed later by a rattling sound coming from the undercarriage. I'm thinking that it could be the flange with the 2 spring backed bolts cuz i was hesitant about cranking them all the way and just tightened until the springs were good and firm. If anybody could give me an idea or two that would be great :help: