I had backed into a curb and twisted my muffler. It was leaking exhaus... read more I had backed into a curb and twisted my muffler. It was leaking exhaust and making quite a racket. The Tru-Line guys assessed the problem and got me same day over to a great muffler shop to get it fixed up. So technically they didn't repair it, but they diagnosed it and got me taken care of with a great muffler shop. Great service. Quick. I'd go back again.