Here is my Chevy 3500 Dually LBZ Duramax on 22.5 inch Alcoa wheels with 255/70/22.5 Kuhmo KRS02. I installed a 5" MBRP downpipe back exhaust and have programmed it to economy/tow to motivate the 36 inch tires to make it feel as strong as it did stock... Honestly it's still quicker than stock even with those tires. I hope it makes it in your magazine. I'm a subscriber and have read every Diesel Power cover to cover since the very 1st one. Oh...and about that Diesel Powered Viper on page 27 of June of 2008. Ed, you have my vote, I'd like to see it happen.