With the complexity of modern ECU’s, tuning is essential in order to realize appropriate gains from common engine modifications. The ECU of today is responsible for emissions, fuel economy, protecting drivetrain components and monitoring many sensors. Calibrations from the manufacturer are very specifically designed to optimize all of the above and it is easy to ruin the calibration with the simplest of bolt-on performance parts. Nowadays, it is essential to recalibrate the ECU to take advantage of performance parts and ensure that the engine is still operating in a safe manner.
Accessport – Open Source – Standalone EcuTek – HP Tuners – UpRev

Accessport Pro Tuning
Beyond the shelf maps! Johnson Tuning is a Certified Cobb protuner for all makes/models supported by Cobb (Nissan GTR, Ford, Subaru, Mitsubishi, BMW, Mazdaspeed, and Porsche). Protuning is essential to unlock the true potential of your vehicle, wether you are using hardware compatible with Cobb’s OTS (off-the-shelf) maps, or have a completely custom build. Johnson Tuning can help make your project complete using the proven Cobb Accessport.
Open Source ECU Tuning
We are able to reflash the factory ECU using our supplied hardware/software using Open Source ECU Tuning. This is offered for only minorly modified Subarus from 2002-2007, and offered for any setup on Mitsubishi Evolution 8, 9, and X. For Mitushishi Evolution 8 and 9, we also offer Speed Density tuning through the factory ECU, and all models 8, 9, and X we offer dual map switching through the factory ECU.
Standalone Engine Management
In order to offer a complete comprehensive level of care to our clients, Johnson Tuning offers professional standalone ECU calibration services for AEM EMS, Haltech, Megasquirt, Motec, Vipec, and many more. Johnson Tuning is well recognized and experienced with nearly all ECU types. Please inquire for more details.
Ecutek ProECU Tuning
Johnson Tuning is a certified Ecutek protuner for Subaru BRZ, Scion FRS, and Subaru DIT platforms. We offer a wide range of services using EcuTek such as Flex Fuel, Forced Induction Tuning, Speed Density, Map Switching, Launch Control, Flat Foot Shifting, and more! Inquire for more details on getting the most out of your vehicle using EcuTek!
HP Tuners
Johnson Tuning is able to professional calibrate all makes/models supported by HP Tuners. Check the list of supported vehicles here to see if your vehicle is supported! Johnson Tuning has a vast knowledge with GM and Ford ECU Calibration, and we are able to effectively calibrate the 2015 Ford Mustang 5.0 in both Manual and Automatic transmission configurations.
UpRev Tuning
Johnson Tuning also offers professional calibration as a UpRev certified tuner for a wide variety of Nissan and Infiniti models such as, but not limited to, 350Z, 370Z, G35, G37, and more. We are able to offer features such as map switching, launch control, valet mode, forced induction tuning, etc.