I just installed the JB3 in my X6 35i.....I am very pleased with the results, Turbo lag basically gone, and pulls much harder. Install is a very easy, if you decide to do it PM me and I can walk you thru it. There are others tuners out there, go to Burger's Web Site for comparison chart.
I can't believe the performance increase for the price.
Go for it !!!
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