Conforti V12 Performance Chip Upgrade

A computer chip is always our first recommended upgrade to almost every BMW. Bonneville Motorwerks tuned engine performance chips, developed by Motronic expert Jim Conforti, provide the ultimate in performance. The modified Motronic software, which requires 91 or higher octane gasoline, adjusts the ignition timing and fuel curves which results in increased performance. Jim Conforti chips have been dyno'd and compared with all other brands and found they provide the best performance throughout the entire rpm range, while still providing the safety margin needed when running a performance engine. Along with performance increases in both torque and horsepower, Jim Conforti chips provide the maximum competitive advantage through raised engine rev-limits and removed top speed limiters.

For V12-powered BMWs expect power and torque gains up to 29hp and 35ft-lbs.

Required information: model and year, transmission (M or AT), and ECU #. The Bosch ECU # can be found on the cover of the engine computer, which is located in a box behind the passenger strut tower. The part number must begin with "0 261". There are two computers and they both should be the same (contact us if you have different ECU numbers). Price shown is for a chip set - 1 chip for each ECU.

Please note: due to global supply chain interruptions, older EPROM chips may be in short supply. Please contact us with your ECU number and we can better advise you on availability.

Notice of Emissions Non-Compliance. This software was developed and tuned on vehicles that retained all emissions controls. It is intended for vehicles with stock and fully functional emissions equipment. However, it has not been submitted nor tested for approval in California. Therefore, it is not legal for sale or use in California on any pollution controlled motor vehicle. Not legal for installation or use on any pollution controlled motor vehicle in any state, province, or jurisdiction governed by, or which has adopted, CARB or EPA regulations.