BMW Z4 (2003-2005) MS45 ECU Tune - Stage 1 Tuning Method:Remote Flash Software + Handheld Flash Tuner it can make problems worse

it can make problems worse

This tune also targets customers that want to get every horsepower they can get out of their naturally aspirated street or track-only Z4Ms

Three tunes: $500

This tune also targets customers that want to get every horsepower they can get out of their naturally aspirated street or track-only car

BMW Z4 (2003-2005) MS45 ECU Tune - Stage 1 Tuning Method:Remote Flash Software + Handheld Flash Tuner it can make problems worseSee our full write up for more details and other tuning options! Stage 1: This is our OEM plus tune, ideal for a naturally aspirated engine with modifications ranging from stock to full bolt on. Expect approximately +15 horsepower on a completely stock car, and more with additional modifications. Full and part throttle tuning is optimized through adjustment of VANOS, ignition timing advance, engine torque request, throttle response, lambda targets,