378 Horsepower 415 lb-ft of Torque Top Speed Governor Removed Factory Matching Warranty (4year/50,000 mi) Properly Returned Fuel Mixtures Remapped Water Pump Speeds to control engine temp Oil-Cooler Required Dinan® Stage 2 Performance Engine Software safely increases turbo-boost pressure, upping power output to 378 hp and 415 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 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. When BMW creates a software update so do we. Dinan® will make software available at no charge to keep your car running as well as it possibly can. The results of Dinan’s tuning are nothing short of breathtaking, with the added boost and related recalibration producing maximum output of 378 horsepower at 5700 rpm and 415 lb-ft torque at 4300 rpm. The "is" models use the N54 engine along with many other BMWs including some 135i, 335i and Z4 models. BMW added the extra horsepower and "over-boost" to the "is" models by adjusting the software in the engine management computer (DME) and Dinan® adds its power the same way. Being that the N54 engines are all the same, the power output will also be the same for each of the Dinan Performance Software stages if it's an "is" model or not. However Dinan's Performance Software gives the "is" more reliable power and not just in 7 second increments but as long as you keep your foot down. Dinan® software is not available for purchase on-line as it must be downloaded by Dinan or an Authorized Dinan Dealer using specialized equipment. Contact your local Dinan Authorized Dealer directly for the purchase and installation of Dinan software. This software can be downloaded in about an hour at most Dinan Dealers. If a conveniently located dealer is not available or if your car is not supported by your dealers equipment the DME can be shipped to Dinan for reprograming.

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