I contacted 3 different providers in Missouri who were listed as dealers for Banks PowerPack Systems. Only Darren from Dry Fork took the time to answer my inquiry about installing a Banks PowerPack on my motorhome. Although it is a 3+ hour drive from home, I went to Dry Fork to purchase the PowerPack and have them install it. I was very pleased with their service and the friendliness of all of the staff! Installation was done on time and on budget as discussed, and when I went to pick up my motorhome, one of the techs took me out for a drive to explain some of what the system would do and what I could expect different from the original stock exhaust system. I expect good things from the Banks PowerPack, but the folks at Dry Fork were great! If I were closer, they would have all of my maintenance and any repairs they could handle for my motorhome.