[bergrotz]

I've done considerable research and comparisons between all of the most popular tuning kits for the N54 power-plant, all leading me to the JB4. I'm very interested in its flexibility, steering wheel map/gauge control, shift lights, preloaded maps (incl stock), and versatility based on other mods.

Is there anyone that has negative feedback or dirt on the JB4?? ..very close to buying it!

Also, can I modify the map parameters using a laptop?

Thanks~~