Quote:
Originally Posted by Gtrny
I have 2011 535x..
I just want make sure which one..
I can switch maf for after down pipe?
thanks
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you need to check and see if your car has the CANBUS that is located on the passenger side, see below link.
http://www.n54tech.com/forums/showpo...16&postcount=3
if you don't have this then you can only run stage 1 like my car.