Quote:
Originally Posted by McLaren720s
I’m not sure about other tuners, but my local shop said that they simply hook directly to the ECU with the harness then flash and dyno tune. They don’t “unlock” anything.
Maybe other tuners do it differently...
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It depends on a few factors...
You have 91 or 93 Octane In Seattle?
I believe with HFC's or catless Downpipes a safe 93 Octane HP # is around 530-540. Thats running up to 22 lbs of boost.
Check this out:
https://f80.bimmerpost.com/forums/sh....php?t=1590504
With a E85 Flex Fuel setup your going to be up in the high 500's.
This:
https://f80.bimmerpost.com/forums/sh...1590504&page=8