This quick install plug and play tuner connects to four easy to reach plugs on top of the engine and safely increases turbocharger output by 3-6psi producing significant power and torque increases. Timing and fueling are appropriately rescaled for the increased boost and the installation is completely reversible in seconds. Compatible with all wheel drive and rear wheel drive models. Power gains range from 30-60whp depending map. On racing fuel or E85 mixtures even higher gains are possible.
You may consider the BMS Benz JB4 if you want to have maximum power!
You may also wish to add the Data Cable or the Bluetooth Connect Kit. This allows you to change the boost of the JB1.
JB1 Map Guide (Updated on 15.07.2018)
Map 0: Disables tuner
Map 1: Pump gas performance
Map 2: More aggressive map for higher octane fuels, E85 mixtures, or modified vehicles
Map 6: User definable map, boost over stock entered on user adjustment page
Please be sure to visit N54tech for the latest map guide, firmware updates, installation directions, and notes.
http://www.n54tech.com/forums/showthread.php?t=28003