The Dinan Performance Engine Software safely increases turbo-boost pressure from the stock 16 to 19 psi, along with properly retuned fuel mixtures, ignition timing, and full map rescaling. In fact, over 2000 lines of code have been addressed, producing substantial increases in power output while maintaining the civility and reliability expected of a Dinan performance product.

With Dinan's software, the governor is set to 167.7 MPH (270KPH) for all modes, due to the high center of gravity and the large heavy run-flat tires.

And as always, Dinan matches the new car warranty coverage for up to 4 years or 50,000 miles, including the possibility of consequential damages. No one offers better performance or backs it up with such comprehensive warranty coverage.

The results of Dinan's tuning are nothing short of breathtaking, with the added boost and related recalibration producing a maximum output of 610 horsepower at 6000 rpm and 575 lb-ft torque at 3500 rpm.

Features:

• More Power: Max gains of +56 HP @ 6500 RPM and +74 lb-ft TRQ @ 3500 RPM
• 50 State Emissions legal; CARB EO # D-176-39
• Improved throttle response
• Top speed governor raised
• Full Map Rescaling, for drivability from idle to wide open throttle and everywhere in between
• Properly Returned Fuel Mixtures, to save you gas and protect your engine
• Retain all BMW factory engine damage safeguards