Kleemann is in my back yard, so they will install and I can drive down the road to Kleemann USA if I have a problem. Kleemann has done my tune, before and after the headers and I was very happy. Cory has been extremely professional in the past with me. I have worked with many shops and many performance companies in the past, everything from built hot rods, 1200 hp Corvettes, GT-R, Lotus, and Porsche's and I can tell you these guys give me more confidence than any other place I have been. They never claim to have the fastest SLS, but I do believe it will be the most reliable. I have 1000 hp 911 turbo that will always be faster than my SLS anyway. Max power is not my goal, a lot of fun and reliable is what I'm after.
Now if things go south I will eat these words!