Dinan's Stage 1 Performance Engine Software provides substantial power gains with a modest increase in boost. 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. Dinan's Stage 1 Performance Engine Software safely increases turbo-boost pressure, along with properly retuned fuel mixtures, ignition timing, and full map rescaling. The top speed governor is removed, enabling the BMW to achieve its full potential. The software also features remapped water pump speeds as boost increases, better controlling operating temperatures which have been notably excessive even at stock boost pressures.

Features:

• More Power: Max gains of +60 HP and +74 lb -ft TRQ
• 50 State Emissions legal; CARB EO # D-176-35
• Full map rescaling
• Improved throttle response
• Top speed governor removed
• Properly returned fuel mixtures
• Remapped water pump speeds to control engine temp
• Smooth and predictable power delivery
  

Dinan Stage 2 Performance Engine Software safely increases turbo-boost pressure, adding 78 HP and 116 lb-ft of torque, along with properly retuned fuel mixtures, ignition timing, and full map rescaling. Dinan's software also removes the top speed governor so the BMW will be capable of achieving its "natural" top speed. Producing substantial increases in power output while maintaining the civility and reliability expected of a Dinan performance product. In an effort to more effectively control oil and water temperatures, the Dinan software actually increases water pump speeds as boost pressure increases. 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.

Increased boost pressure exceeds the turbochargers' design limitations at higher RPM, potentially shortening their lifespan. Dinan addresses this issue by tapering the boost gradually at higher engine speeds. This approach also addresses the fact that with an increased boost at higher RPM the turbocharger temperatures would exceed the intercooler's ability to cool the intake charge resulting in a loss of power and compromising the long-term durability of the engine. The tapered boost along with the required oil cooler keeps temperatures within the design limitations so as to optimize output and ensure engine reliability with the added boost pressure.

Stage 2 Features:

• Smooth and predictable power delivery