so has anyone done it yet? they have the supercharger up for the E60 550i (same 4.8i engine) but nothing under the E53 X5 4.8is section.

BMW - E60/61 5-Series - 550i - ESS Tuning | BMW Tuning Parts | BMW Racing, Tuning, Aftermarket, Performance Parts | Engine Power Chips | Performance Upgrades Chip

TVS2 package: "Adds 120 hp/80 ft. lbs. torque"