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Unleash hidden power within your BMW 135i, 335i, or 535i's N54 motor with the Cobb AccessPORT ECU Flash Tuner. The Cobb AccessPORT ECU Flash simply replaces conservative factory settings with more aggressive calibrations that result in impressive gains in torque and horsepower while still maintaining a high degree of safety for your N54 engine. The tuning is extremely flexible and allows you to choose on the fly one of the performance maps that are loaded onto the AccessPORT. If you are looking to extract the most out of your N54 the AccessPORT even allows for custom mapping. Typical performance gains from the Cobb AccessPORT areincreases of 30% peak horsepower and an amazing 38% increase in peak torque. This tune is an ECU flash, not a piggy-back tuner, there will be no added devices to your vehicle's ECU.
![Click here to enlarge]()
Features & Advantages
Up horsepower by 30% (approximately 100 horsepower)
Increase torque by 38% (approximately 120 Ft./lbs)
ECU flash, not a piggy-back tune
Installs in minutes using easy to use AcessPORT interface
Installs via OBDII connector, no tools required
Grows and changes as your modifications do
Uninstalls in minutes to return your ECU to stock configuration
Conveniently log data values for up to 10 hours without a bulky laptop
Integrated performance tools to record 0-60 times, 1/4 ET & trap speed
Intuitive DTC code reading to help diagnose issues
Easily clear ECU codes
30 day satisfaction guarantee
Downloadable free performance maps as released
Important Note - Occasionally an "Unrecognized ROM" will be discovered during the AccessPORT Install process. If an "Unrecognized ROM" is encountered, the user will be prompted to dump the ROM using the onboard Dump ROM tool built into the AccessPORT. Simple step-by-step instructions for dumping an "Unrecognized ROM" can be foundhere. The ROM is then emailed to COBB Tuning and incorporated into the firmware. COBB Tuning will make every effort to incorporate these new ROMs as quickly as possible. This process can take up to five business days. See the "Supported ROMs" Tab above for a complete list on what ROMs are currently supported.
![Click here to enlarge]()
Applications
2008-2010 BMW 135i
2007-2010 BMW 335i/xi/xDrive/is
2008-2010 BMW 535i/xi/xDrive
Troubleshooting
Read error codes
Clear error codes
Reset ECU
Monitors
The Cobb AccessPORT for your 135i, 335i, or 535i can monitor all of the following values. Monitors in bold indicate a default logging value.
![Click here to enlarge]()
Dyno Chart
![Click here to enlarge]()
Unleash hidden power within your BMW 135i, 335i, or 535i's N54 motor with the Cobb AccessPORT ECU Flash Tuner. The Cobb AccessPORT ECU Flash simply replaces conservative factory settings with more aggressive calibrations that result in impressive gains in torque and horsepower while still maintaining a high degree of safety for your N54 engine. The tuning is extremely flexible and allows you to choose on the fly one of the performance maps that are loaded onto the AccessPORT. If you are looking to extract the most out of your N54 the AccessPORT even allows for custom mapping. Typical performance gains from the Cobb AccessPORT areincreases of 30% peak horsepower and an amazing 38% increase in peak torque. This tune is an ECU flash, not a piggy-back tuner, there will be no added devices to your vehicle's ECU.
Features & Advantages
Up horsepower by 30% (approximately 100 horsepower)
Increase torque by 38% (approximately 120 Ft./lbs)
ECU flash, not a piggy-back tune
Installs in minutes using easy to use AcessPORT interface
Installs via OBDII connector, no tools required
Grows and changes as your modifications do
Uninstalls in minutes to return your ECU to stock configuration
Conveniently log data values for up to 10 hours without a bulky laptop
Integrated performance tools to record 0-60 times, 1/4 ET & trap speed
Intuitive DTC code reading to help diagnose issues
Easily clear ECU codes
30 day satisfaction guarantee
Downloadable free performance maps as released
Important Note - Occasionally an "Unrecognized ROM" will be discovered during the AccessPORT Install process. If an "Unrecognized ROM" is encountered, the user will be prompted to dump the ROM using the onboard Dump ROM tool built into the AccessPORT. Simple step-by-step instructions for dumping an "Unrecognized ROM" can be foundhere. The ROM is then emailed to COBB Tuning and incorporated into the firmware. COBB Tuning will make every effort to incorporate these new ROMs as quickly as possible. This process can take up to five business days. See the "Supported ROMs" Tab above for a complete list on what ROMs are currently supported.
Applications
2008-2010 BMW 135i
2007-2010 BMW 335i/xi/xDrive/is
2008-2010 BMW 535i/xi/xDrive
Troubleshooting
Read error codes
Clear error codes
Reset ECU
Monitors
The Cobb AccessPORT for your 135i, 335i, or 535i can monitor all of the following values. Monitors in bold indicate a default logging value.
Dyno Chart
