BMW (E46) M3 ECU Tuning Software (2001 - 2006)

Standard Output: 333hp | 262tq
Power Gains:  +15-30 WHP  |  +10-20 WTQ

HEX Tuning is Expertly calibrated and extensively tested to provide noticeably improved throttle response with increased horsepower and torque, all while preserving your OEM like drivability and reliability. Why? - Because we can! HEX Tuning Performance Software can now be easily uploaded without the need to physically remove and open your ECU’s. Users can switch between Stock & Performance software using the HEX Tuning User Programming Tool without the need to revisit their local tuner. The entire process takes only minutes and produces generous POWER gains. Each power level is engineered to provide increased performance across the entire rev range by optimizing ignition timing, boost pressure, cam timing, throttle maps and many other calibration tables within the ECU to provide absolute functional synchronicity.