Active Autowerke X5/X6 (TT 4.4) Performance Software | E70 X5 / X6

***Before your order ships you MUST sign and return the Off Road Use Only Waiver available HERE. Please email, fax or take a photo of the completed form. You can email it to your sales rep or to info@activeautowerke.com and you can fax it to us at (305) 253-8921*** The BMW 4.4L (5.0) Twin Turbo motor is BMW's newest powerhouse. From the factory this engine produces 400 HP and 450 Ft Lbs of torque. Through careful engineering and countless hours of R&D Active Autowerke is able to raise the power levels by 40 rear wheel horsepower and 40 ft lbs of torque. This power increase has been obtained by increasing the boost levels and modifying the fuel and ignition tables. All this has been in done while maintaining the factory characteristics that BMW engineered this engine/Ecu combination to work with. The Active Autowerke upgraded software is designed to operate with gasoline that has an average octane rating with full emissions to create a clean burning combustion with good AFR's all within factory specifications. Looking to bring your 4.4 Twin Turbo motor to the next level? This upgrade is a must for the BMW enthusiast lookin for over 460 HP and a powerful 500 ft lbs of torque. Key Features: 40 Rwhp and 40 Ft lbs of torque Increases Higher torque over factory settings through RPM range Recalibrated settings for a smoother and more responsive part throttle transition Recalibrated settings for a smoother and more responsive power delivery Ability to tune all DME's Top speed limiter removed Tune available for 91 or 93 octane fuel. Tune also available for Euro Spec & Other International Octane Ratings Software Purchase Options When you purchase software you have 3 options to acquire it. 1) Locate an Active Autowerke Flash station equipped dealer near you and have it installed there. Click here for Dealer List. 2) Purchase a Simon4 cable from Active Autowerke and install the software yourself. Very useful if additional software upgrades are needed in the future. WARNING - when flashing your ECU, it is important that you connect a battery charger to your car in order to provide a stable voltage source regardless of your battery condition and you must remove any sleep options on your laptop. 3) Remove and mail Active Autowerke your ECU and we will install the software. See Tech Support for details on removal and mailing of ECU. Dyno Chart