In terms of DMS and their output, they seem to have a pretty standard tune and I have gotten a lot of good reviews from UK users. Whether or not they have "the strongest" or "the fastest" they have the tune running on a 535d with over 100k miles with no issues. It'll be a week or two before I get delivery. I'll be sure to post more once it comes.
NRG - do you know if there is a way I can search for dealers for your remap in my area?
- As for RENNtech, they have a dealer in MD, but I haven't gotten word from them on the 335D remap.