It varies based on your cars battery strength. When i change maps its only a few minutes. But like what husky said to new install/uninstall it takes a little bit of time.
Originally Posted by hp jnkey
Ok, thanks for that.
I thought it would only take a minute or so.
2009 AW 535i
-Sport, Premium Package, and Comfort Access
-FBO, custom Cobb E30 map, Performance Gearing LSD.