COBB Tuning is happy to announce the release of revised Stage1 maps for all BMW AccessPORTs. These new v2.02 maps feature slight revisions to fuel, boost and ignition tuning as well as alternate maps with different throttle calibrations to suit a wider range of drivers. In addition, ACN91 (Arizona, California, Nevada) calibrations have also been added to support users in these states using the blend of 91 octane fuels particular to these states.

Throttle Mapping

Based on user feedback, COBB Tuning has released 2 versions of each calibration with more linear throttle mapping. All maps are available with standard throttle mapping as well as the new v1 and v2 linear throttle mapping. The v2 calibrations offer a more aggressive accelerator pedal feel and may be more suitable for 6MT-equipped cars. The v1 calibrations are less aggressive and may be more suitable for automatic vehicles, however, both calibrations are safe to use on all transmission types.

Map Revisions

Boost levels, fueling and ignition timing have been revised to improve performance and reduce ECU intervention over driver inputs. Torque and load limits have also been altered to allow for significantly increased power levels over stock. The speed limiter has been raised to a maximum value of 198.4mph (ECU limit). The rev-limiter has been raised to 7,200RPM for 91 and 93 octane maps, only.

ACN91 Mapping

ACN91 octane calibrations have been added to further support users in Arizona, California and Nevada. These states use a specific blend of 91 octane that has been shown to perform below standard 91 octane. Users in these states are strongly encouraged to use the ACN91-specific calibrations.

These newest calibrations are available right now from the COBB Tuning BMW Map Database. For more detailed information on maps and revisions, please consult the BMW Stage1 Map Notes or call COBB Tuning at 1-866-922-3059.