Concord Motorsport 603-798-3700 - Chichester, NH

Dinan, North America’s BMW tuner, is pleased to announce the introduction of the anxiously awaited Performance Engine Software for BMW 335 models. 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 Dinan Performance Engine Software safely increases turbo-boost pressure from the stock 8.8 to 13.2 psi, along with properly retuned fuel mixtures, ignition timing and full map rescaling. In fact, over 2000 engine management functions have been recalibrated, offering substantial increases in power output while maintaining the civility and reliability expected of a Dinan performance product. Some examples include:

Remapped Water Pump Speeds. In an effort to more effectively control oil and water temperatures, which have been notably excessive even at stock boost pressures, the Dinan software actually increases water pump speeds as boost pressure increases. A much larger, more efficiently ducted oil cooler has also been developed, further improving heat exchange for lower and more consistent operating temperatures, even with the added boost pressure.

Boost Pressure Control. 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 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 keeps temperatures within the design limitations so as to optimize output and ensure engine reliability with the added boost pressure.

Top Speed Governor Removed. With Dinan’s software, the 335 will be capable of achieving its natural top speed as the governor has been removed.

The results of Dinan’s tuning are nothing short of breathtaking, with the added boost and related recalibration producing maximum output of 384 horsepower at 5700 rpm and 421 lb-ft torque at 4300 rpm. All of this additional power is available from Dinan’s software alone, which is easily downloaded by your Authorized Dinan Dealer in about an hour for 2007 models (2008 model year vehicles require that the ECU is removed and shipped to Dinan for installation of the software at this time).