I had Danny install exhaust, EFI Live tunes, Edge CTS2, EGT Probe, lift pump, fuel rail mod, remove failing EGR and DPF on my 2010 Sierra. What a difference! Took a couple of days in the shop and some trust as they are a bit disorganized. I am very happy with the results. I've had no issues and this truck is a complete animal now. I have a towing vane brake now and it works exactly as expected. I tow 18000 lbs all over the country and I need nothing more.
Danny is honest and sticks to his quote. I was happy to find that I could call him when I had a question on the road about my EGT temps and he was happy to give me good information. I wouldn't hesitate to give him a call and you should check his google reviews as week to see his customer service there as well.