Currently working with Dynomax on this issue.  The driver tailpipe is creased behind the first bend around the gas tank.  I initially went through the vendor I bought the kit from and was sent another tailpipe with the same problem.  Working through it with Dynomax directly this time.  Not a huge deal and par for the course when doing a project like this.  The key is working through it and Dynomax’s warranty department has been a champ so far.