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COBB AccessPORT Mazda MS3 Mazdaspeed3 (07-12) AP-MAZ-002

COBB AccessPORT Mazda MS3 Mazdaspeed3 (07-12) AP-MAZ-002
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$595.00 Shipped
Shipping: Free Shipping
Availability: In Stock
Part Number: AP-MAZ-002
Condition: New w/ Manufacture's Warranty
Manufacturer: COBB Tuning
Warranty: Authorized Dealer
COBB Tuning

COBB AccessPORT Mazda MS3 Mazdaspeed3 (07-12) AP-MAZ-002


USDM Mazdaspeed3 Only

POWER. FLEXIBILITY. CONTROL. The AccessPORT is the industry leading OEM ECU flashing, managing and monitoring assistant. Unlock power hidden within the ECU by replacing conservative factory settings with more aggressive calibrations that provide impressive gains in torque and horsepower while maintaining a high degree of safety. The AccessPORT comes with pre-installed maps that are optimized for common performance modifications.

Tuning flexibility ranges from simply loading one of the included performance maps optimized for common performance modifications, all the way to complete custom map authoring using our powerful AccessTUNER software. Extract maximum power from virtually any modification while retaining the driveability and sophistication inherent in the OEM ECU.


Modern vehicles are very sensitive to performance modifications. Simply changing an intake can have a dramatic, even degrading effect on performance and driveability. This is because modern ECUs (Engine Control Units) use very precise sensors to collect data in order to calculate appropriate fuel, ignition and cam phasing responses. Modifying a vehicle with performance parts will most likely cause one or more sensors to be improperly calibrated, feeding erroneous data to the ECU and contaminating the response. This is why changing a part as simple as an intake or a panel filter can cause the engine to run too lean, too rich, or even stumble.

The AccessPORT is the device that enables recalibration of sensors and manipulation of data on the factory ECU. It provides the capability to reflash select segments of information that are stored in the computer that control engine function. These segments of data that are written to the ECU are collectively referred to as maps. Our engineers and calibration specialists create maps that modify sensor calibrations, lookup table values and algorithms to ensure that the ECU is receiving accurate information and responding in an appropriate way.

COBB Tuning provides Off-The-Shelf (OTS) maps for the most common modifications made by performance enthusiasts. These OTS maps recalibrate the appropriate sensors and modify tables with more aggressive settings. The result is increased power output, improved response and better driveability, since all of the components are working together in harmony. It is the ultimate integration of performance and sophistication as the manufacturer's complex and precise engine management logic and ECU data integrity is retained.

The beauty of the AccessPORT is that it can continue to grow with additional modifications beyond the scope of the OTS maps. For more extreme modifications, COBB Tuning AccessTUNER software can be used to create custom tuned maps that match the modifications perfectly. COBB's extensive network of professional tuners are available to custom dyno tune any modification configuration. For those that want to take on the challenge of tuning their own vehicle, AccessTUNER Race is downloadable software with all of the tuning capabilities as used by our professional tuners


Automobile manufacturers spend enormous amounts of money on the research and development required to create the complex engine management systems that are found in modern vehicles. They put significant effort into sophisticated logic that controls power output, fuel efficiency, exhaust emissions, hardware protection, self diagnosis, etc. Modern Engine Control Units (ECUs) are very refined and ensure proper engine operation at all times; cold starting, warm starting, extreme heat or cold temperatures, many different fuel blends and a wide ranges of altitudes. The manufacturer even builds in contingency plans to protect the engine in the event of sensor failures or other component failures by limiting power output until the faults are rectified.

The AccessPORT seamlessly integrates with the manufacturers solution. The AccessPORT changes specific table values in order to recalibrate sensors and optimize fuel, ignition and cam phasing to generate safe and reliable power gains. Stock logic is retained so that the ECU continues to operate as the manufacturer intended. This translates into impressive power gains with all of the intelligence, sophistication and protection that the manufacturer built into the system.

In some cases the factory ECU just was not designed to support some of the functionality that enthusiasts desire. For these situations, COBB Tuning develops and tests additional logic that allows for different functionality should the user want it. This can range from implementing flat-foot shifting, launch control, MAP based tuning or disabling DTC codes, limp modes and limitation tables.

The AccessPORT delivers many features found only in a stand-alone ECU with all of the sophistication and reliability found in a factory ECU.


High performance cars are meant to be fun, but as performance increases, so does risk. The automobile manufacturers have developed data checking algorithms on their Engine Control Units (ECU) to ensure that the data held within is intact. With more and more of the vehicle's systems being controlled electronically by the ECU, including throttle control, it is increasingly important to detect corrupt data and intercede in an appropriate fashion.

COBB Tuning puts forth significant effort to maintain the factory data integrity functions of the ECU. Start-up checksums remain in place while using the AccessPORT, unlike many other reflash tuning solutions which simply zero out the checksums in order to trick the ECU without verifying data integrity.

Validating ECU data integrity is a critical component in maintaining a high degree of safety for internal engine components as well as personal safety. Consider the effects that corrupt data can have in drive-by-wire throttle control on a high horsepower car or the fueling tables in an expensive motor build and the implications are clear.

AccessPORT tuned cars retain these important safety checks as deemed necessary by the manufacturer.

Check Engine Light or DTC Defeat

Off-road motorsport racing activities do not have the same strict rules regarding engine emissions and safety warnings required for street use. The AccessPORT enables the user to turn off certain Diagnostic Trouble Codes (DTC) related to emission controls and other warnings that can be distracting in motorsport racing environments.

Disabling the DTC's that are irrelevant in racing keeps the DTC warning lamp useful for when other more important trouble codes are found.

Simple Installation

The AccessPORT is one of the easiest modifications you can make to your high performance vehicle. On a scale of one to four wrenches, the AccessPORT is half a wrench. Drawn in crayon. No tools are needed and no computer connection is required. Just plug the AccessPORT into the OBD-II port under the dashboard and follow the simple step-by-step on-screen instructions. In just a few minutes you will have a new performance map loaded on your ECU and you will be ready to experience the additional power and driveability of a proper tune for your modifications.

Change Maps

The AccessPORT can store up to 20 maps so you can be ready for any challenge. Use the Change Map function to browse the maps stored on your AccessPORT and select the map most appropriate for what you want to do. Parking your car overnight? Load the Anti-Theft map. Handing your car over to a valet for dinner? Switch to the Valet map to prevent abuse. Running down the drag strip to beat your last ET? Fill up the tank with race gas and load up your race fuel map. Heading out on a long boring highway drive? Perfect time for that fuel economy map.

It's like an MP3 player for your engine. The "songs" are maps and the "music" plays through the exhaust! What song is up next? You decide.

Base Maps

e AccessPORT comes pre-loaded with maps to get you on your way, right away. Once the AccessPORT is installed on your car, you will have the following base maps to choose from:

Stock Mode: The stock mode map uses the same calibrations that came from the factory. The stock mode map is a great way to re-establish a baseline when comparing tunes as it lets the engine behave the same way it did before installing the AccessPORT.

Stage 1 Maps: These maps are performance maps that are designed for vehicles with no engine modifications or mild modifications such as a cat-back exhaust.

Stage 1+ Maps: These are performance maps for vehicles with an upgraded intake system. Aftermarket intakes can dramatically change the airflow pattern across the MAF sensor which can generate incorrect readings and make the engine run lean or rich. A Stage 1+ map recalibrates the MAF sensor for the specific aftermarket intake system you are using.

Stage 2 Maps: These maps are geared towards performance upgrades that reduce restrictions in the exhaust system. If you have replaced the factory downpipe from the turbo, added race headers or replaced the factory catalytic converter with a high flow cat, a Stage 2 map is what you are looking for.

Stage 2+ Maps: These maps address both upgraded intake modifications and the high flow exhaust enhancements of Stage 2.

For even more map selection, be sure to visit our Online AccessPORT Map Database. Click on the Maps and Map Notes button that corresponds to the manufacurer of your vehicle. Here you will find many more maps that are designed for additional aftermarket parts manufacturers, race fuels, turbo upgrades, ethanol and more!


Every AccessPORT has built in Performance Monitors. These are great for showing the performance of your vehicle in the current state of tune with the modifications you have installed as well as helping to quantify performance gains when you make additional modifications. These are also great tools to help you improve your skills at the drag strip. It's like printing off your own time slip any time you want!

The following Performance Monitors are available:

60' Time: Elapsed time to 60' distance. Indicates how well your car is hooking up off the line.
330' Time: Elapsed time to 330' distance.
0-60 mph: See where your car stacks up against the 0-60mph times published in the major car magazines.
1/8 Mile: Elapsed time and vehicle speed at 1/8 mile distance (660').
1000' Time: Elapsed time to 1000' distance.
1/4 Mile: Elapsed time and vehicle speed at 1/4 mile distance.
Dynamometer: This monitor simulates a dynamometer. Based on vehicle weight and acceleration rates, it estimates the horsepower of your engine. This is a great tool for evaluating performance gains after completing new modifications or installing a different performance map.

Data Logging

The AccessPORT functions as a hand-held data logging device. There is no need for a clunky PC to ride shotgun with you in the passenger seat. Just plug the AccessPORT into the OBD-II port, select Data Logging from the menu and choose which monitors you wish to data log. Choose as few or as many monitors as you like. Hit enter and data logging begins. Once the data gathering is complete, hit the enter button again. The data is stored as a data log file within the AccessPORT. The AccessPORT can store up to 10 individual data logs and the combined duration of data logs can be up to 10 hours.

The data logs are stored on the AccessPORT for as long as you want them there. Just unplug the AccessPORT and put it in your pocket, back-pack or briefcase. Your data goes with you with all the portability of an MP3 player. To analyse the data, simply plug the AccessPORT into any PC and download the data logs. The data can then be imported into your favorite spreadsheet or graphing software for detailed analysis.

Data logging monitors consist of both raw data types and calculated data types. Some examples of data logging monitors are throttle position, boost, ignition advance, wastegate duty cycle, mass air flow, fuel trim, battery voltage, intake temperature, coolant temperature, injector duty cycle, air/fuel ratio, knock correction, knock learning, injector pulse width, calculated load and many more. When logging multiple monitors, it is easy to see how powerful a tuning and performance analysis tool AccessPORT Data Logging can be.

Data Logging monitors aren't available on all applications.

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