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      03-14-2019, 06:46 AM   #16
hufington
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Drives: 2022 X5 m50i
Join Date: Mar 2010
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Quote:
Originally Posted by Rotzy View Post
In a nutshell:

RC is a piggyback tune. It simply intercepts the signal from the boost sensor(s) and modifies it. It relies on the vehicle to adjust fuel, spark, timing, etc within stock parameters.

BM3 is a flash tune. It completely reprograms the engine computer(s) with new boost tables, fuel tables, timing, etc. Therefore, it achieves greater gains and in a safer way than a piggyback. Plus, it is custom configurable and provides the ability to data log and read/clear codes.
How was your personal feel of both?
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2022 BMW X5 m50i
2024 MB S63 on order
'18 X5 50i / '16 BMW F10 550xi / '13 BMW F10 535i / '07 BMW E64 630i / '03 BMW E65 745i / '95 BMW E34 540i / '89 BMW E30 M3
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