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FAQ and Support

The first thing we recommend to do is send us an email with your year make and model as well as your WHP/TQ goals for the car. You can include any history you feel is pertinent about the car as well. It is also helpful to send over an estimated budget for your build. We can then tailor fit a quote that will help you get as close to or meet your goals within your budget. There are many ways to get where you would like to be with your car. Working with a company that has the knowledge and hands on experience to help you reach those goals is the key to success. You will find that key at Reese Tuning.


We have extensive experience in most makes and models. We support a wide variety of ECU/PCM calibration softwares such as COBB, MoTec, EcuTek, Haltech, Hondata, HP Tuners, Open Source and many more. We understand that each and every car has its own specific needs. If you want to know if we support your specific ECU/PCM please do not hesitate to contact us. If we can't help you we will most likely be able to point you in the direction of someone who can.


Yes, we do. If you are planning an extensive build and would like expert advice from a company with two decades in the performance business we are the right choice. We will give you an exact list of what we recommend to purchase and put on the car. We do charge a consultation fee. However, if you do the work through us we apply the consultation fee to your build.

AnswerAn OTS(off the shelf) map is a basic calibration made for your specific vehicle. It is typically purchased to run and drive your car safely after you install aftermarket parts yourself. It is sent to you remotely. Only specific vehicle makes and models with basic bolt on parts qualify for an OTS map purchase. See "tuning" page for variation specifics. OTS maps that come with certain tuning device manufacturers are made specifically for that manufacturers parts. So, an OTS map purchase from Reese Tuning will be more beneficial if you have different brands or parts installed on the car. For example, a COBB intake with a Grimmspeed blow off valve. OTS maps do NOT come with any datalogging or drive-ability issue support. They are a one time purchased, one time received item. See our "terms of service" page for more clarification on OTS maps.

AnswerE-tuning is the process of tuning a car over the internet. Calibrations/maps are sent to you via email. Once you receive a map from us you will then be responsible for gathering datalogs on the vehicle. Datalogging instructions are listed in a another drop down menu below. After we receive the datalogs from you we will review them and make adjustments to the callibration/map as needed. We will then send the adjusted map(referred to as a revision) back over to you. You will then gather more datalogs. This process continues back and forth until the vehicles is in tune.


Our recommendation is to always have the car dyno tuned, however if you are unable to come to our location choosing an e-tune may be the best option for your car. It enables you to get all the benefits of a protune, remotely. Many of our clients from out of state and outside of the US choose this option. Fun fact: The data we look at when you send us datalogs during an e tune is the same data we look at when the car is on the dyno in person. Note: only specific vehicles are able to be e tuned. Check out our "tuning" page for specifics or contact us to find out if your vehicle is able to be e tuned.


NOTE: these logging instructions are proprietary for COBB tuning software, specifically for Subaru vehicles. If you are using COBB software to datalog on a different COBB supported vehicle some of the requested parameters may be named slightly different. Do your best to find alike parameters. If you get stuck contact us and we will help you.
Set up: How To Change/Set Up Parameters To Be Logged
1. Link your Accessport to your vehicle and turn it on.
2. Select "Gauges" from the main menu
3. Go up and select "Setup" (green)
4. Select "Configure Datalogging"
5. Select parameters listed below ONLY
Air fuel correction 1
Air fuel learning 1
AVCS left, right, intake and exhaust(if present)
Boost or boost extended(if both are shown, select both)
Coolant temp
Calculated load
Dynamic advance multiplier(DAM)
Engine speed
Ethanol final
Feedback knock
Fine knock
Gear position
Intake air temperature
Ignition timing
Injector duty cycle
MAF Volts
Manifold pressure relative
Roughness 1, 2, 3 and 4
Throttle position
Wastegate duty
6. When finished simply hit the back button to return to the gauges

How To Change/Set Up Number Of Gauges Displayed
Link your Accessport to your vehicle and turn it on.
Select "Gauges" from the main menu
Go up and select "Setup"
Select "Change Gauge Layout.”
The recommended selections for a 6 gauge set up are: Boost, DAM, feedback knock, fine knock learn, AF correction, coolant temp
Once selected, you're done!

Gathering logs:
Connect the accessport to the vehicle via the OBDII cable. Go to the “gauges” menu. From there you start and stop the log by using the center select button. Datalogs will automatically save to the accessport once stopped. They will automatically number themselves as they are taken. (Example, datalog 1, datalog 2, datalog 3, etc). After logs are sent to us via email it is recommended to delete them from the accessport via the accessport manager as to avoid confusion when gathering future logs.
IDLE LOG: Once the engine is completely warmed up and parked, start the logger by pressing the center button. Allow the car to idle for 45 seconds. Stop logger.
CRUISE LOG: Start and stop the log during the following: aim for a steady 45mph or 55mph cruising speed in third gear for at least a mile or more.
PULL LOG: Start and stop the log during the following: this is a full throttle pull from 2,500 rpm to 5,000 rpm in third gear. You have now successfully completed the required logs.

REMEMBER TO ALWAYS SEND THE CURRENT MAP ALONG WITH THE DATALOGS! Once datalogs are reviewed we will revise the map and send over a revision. You will load the revised map onto the car just as you did the basemap and then gather logs just as before. This process repeats over and over again until tuning is completed. Our tuner may request only one specific log as the tune progresses and other logs are no longer needed so pay attention to any instructions given in the body of the email that has the map.


See our "terms of service" page for return terms and conditions


For vehicles that have received an E tune or an in house dyno tune we offer 30 days of datalog review and/or phone support from the date of successful tuning. When we review the datalogs we will do our best to help diagnose your issue. In some cases we may have you bring the vehicle to our shop or advise you to bring your car to a local shop for mechanical tests to be performed. Once a tune is flashed onto a vehicle successfully there is no way for the tune to change itself. It is written in code to the vehicles ECU. If you are experiencing drive-ability issues after a tune you have a mechanical issue. If it has been more than 30 days since successful tuning and you are needing diagnostic help the standard in person or remote help rate is applicable.

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