Home / Collections / Best Selling Products / BMW Z4 (2003-2005) MS45 ECU Tune - Stage 1

BMW Z4 (2003-2005) MS45 ECU Tune - Stage 1

| /

See 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, DTC delete (as required) and other proprietary revisions. Despite targeting naturally aspirated vehicles, our Stage 1 ECU tune incorporates more parameter changes than most tunes included with aftermarket forced induction kits.

Handheld Flash Tuner: Some customers desire the ability to flash between tunes without taking a laptop with them. Our handheld, touch screen flash tuner ("programmer") stores up to five tunes which can be flashed to the vehicle's ECU in approximately two minutes. Our Stage 1/2/3 and Alpha-N tune purchases include a K+DCAN cable and license for our remote tuning software, so this purchase is NOT required in order to upload tuned files to the ECU and is offered as an additional add-on. 

Additional Tunes: Three additional tunes can be purchased for $500. Examples include summer/winter, high/low altitude, pump/race gas, E85, OBD2 monitoring on/off.

EWS Delete: We are one of the few that offer EWS deletes for MS45. Commonplace on race cars, an EWS delete allows for "hot swapping" ECUs. Customers can have multiple ECUs with different configurations and switch between the ECUs at any time. Please note that EACH ECU requires an EWS delete modification at $200 per ECU.