The kit came with a heavy discount.Wow. How was the new unit chassis matched?
You should have just paid for the exhaust and walked away.
The MPPSK tune can be done for very little.
The exhaust alone including fitting would have been just £100 less.
Bm3 is £550 so in effect I've only paid £600 extra... in which I get a correct ATM unit, the proper Map, the BMW warranty intact, and the MyBMW app to function.
Not too bad.
I plan to keep this far for at least 6 years, I want it to be reliable.
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