We have used EPIC for our S65 tuning needs from day one. Randy is a racer... not a basement computer tuner... His S54 and S65 prowess is well-known in the community and he never misses. Our E9x calibrations are fool-proof, providing near 400whp with the right supporting modifications, zero temp issues and consistent power at the track.
Through custom ECU tuning we are able to provide more usable horsepower and torque outputs by modifying BMW’s dual variable cam timing (VANOS), drive by wire tables, and fuel and ignition maps. Better part-throttle drivability is also obtained. The vehicle’s top speed governor is removed. Custom software modifications for headers or other modifications are available. Rear O2 sensors monitoring, as well as other emission related items, can be disabled upon request for race cars and/or off-road use only vehicles.
When placing your order, please send your VIN, Year, Fuel Used & Engine Mod List.
***IN THE STATE OF CALIFORNIA, FOR OFF-ROAD USE ONLY***