Quote:
Originally Posted by BimmerLover98
Best engine tune for a 2013 535i m sport? Dinan or jb4 and what do the power numbers look like for them? Thanks in advance
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Then you also have aFe scorcher (plug it in and forget about), RaceChip (tweakable from unit itself), and Active Autowerke Active-8 Tuning Box
All the above mentioned great rep, proven but it all depends on the individual needs.