Quote:
Originally Posted by m5james
Quote:
Originally Posted by BPMSport
My personal daily driver is an X5, we've been tuning this car for a long time!
https://www.xbimmers.com/forums/showthread.php?t=763955
Check us out, software for the X5/X6 35i 50i and X5M is available. Takes about 10 minutes to flash and there are vehicles using our software for 8+ years on this platform, including vehicles with upgraded turbos with nothing but extra smiles  |
Is the tune canned or customized somewhat based on mods w/ datalogs and/or dyno rental? I'm finally getting around to S63TU manifold and turbos this fall. I have an HCP flash now but it does this weird thing with the JB4 where I'll be at 21psi and it's a rocket, then it slowly tappers down to like 12-15 until I switch maps again, usually between 1 & 6.
2010 X5M - custom intakes, catless downpipes, JB4 w/ meth, 2 step colder plugs, muffler delete with Vibrant resonators. |
Get rid of the JB4 and get a custom tune.