BMW X3 xDrive 35i (2011-2017), +134HP

Experience Unmatched Power Gains: Factory: 306 HP / 295 lb-ftStage 1 Tune: 420 HP / 400 lb-ft | +114 HP / +105 lb-ft (37.3% / 35.6%)Stage 2 Tune: 440 HP / 420 lb-ft | +134 HP / +125 lb-ft (43.8% / 42.4%) Expert Precision with Custom Tuning Each of our tuning files is 100% tailored and expertly designed to meet your exact vehicle's needs and specifications. You can install these custom tunes effortlessly in less than 30 minutes once we send you the custom file. Stage 1: Perfect for stock vehicles. Stage 2: Crafted for vehicles with upgraded downpipes. Stage 3: For vehicles with upgraded turbos, E85, and other performance upgrades. Contact us for details. Simply plug in & upgrade your ECU We will ship you one of our My Genius handheld devices to make power boosts a plug-and-play affair. Only a Windows 7+ PC is needed to swap files - everything else, from the handheld devices to to instructions, is in the box! Customizations: - Extend or add burble - Calibrate the tune for your octane rating - Perfect the tune for every additional upgrade on the vehicle - Top speed limiter removal - Check engine light removal for