I wanted to get a chip but I just don't feel comfortable using Upsolute. First off I never even heard of Upsolute until the Crossfire, and I've been in the auto performance/customizing scene since 1997. You been around that long, and you haven't heard of a brand, theres a reason.

I also talked to MY mercedes benz guy who did my uncles SL55 AMG chip and turbo, as well as numerous other friends cars chips and what not, and he said he used Upsolute for a while, but they had problems, so now he won't do it anymore. Specifically related to cars check engine lights coming on with various error codes.This guy actually has an SLK as his daily driver. He says he would only go with Renntech, and I trust his opinion as more than just a salesman. After all, if you own a popular Mercedes performance shop and you drive an SLK, and you only use Renntech.... nuff said.

Anyway his opinion is enough to confirm my belief that I don't want an Upsolute chip. There are reputable companies like Renntech that make a chip, I don't care if it's more money, they have a name and a reputation on the line, so their chip better live up to what they hype. They have tons of MB owners coming to them for many different cars. Upsolute, on the other hand, has nothing to lose, since nobody knows them anyway.