Don't waste you time with Gardner. Did a lot of wheel spinning with them only to listen to Eric gloat about how good he is and nothing to back it up. That company took a major hit when Mr. Gardner Sr. died. Eric (his son) has nowhere near the business aptitude his father did. I've had personal experience with examples of this.

My recommendation would be Waldron Exhaust in Michigan. I have personal experience with them and it's almost all very good. I'm pretty picky and for me to recommend them is a tall order. Nothing out there is perfect but John Waldron knows how to bend pipes......... And if he makes a mistake he stands behind it.