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Hi Guys, i have just bought my 1st e90. Have had quite a few e46 and e39s before. My new car is a 323i Japan spec. I am new to the forum so please forgive me if I have posted this in the wrong place. I have just changed my manifold from 2 stage to 3 stage and was wanting to flash a 325i tune into my car. I've found a file on Bimmerlabs site but it says it is a stock tune. Does anybody know if this is actually "stock" or has it been modified to suit the 3 stage manifold?? I tried to look for more info on what it actually is but maybe i missed something? If someone could explain how it works that would be great. Thanks.
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