Within the TCM we start by ensuring the latest GM software updates are applied, then adjust base line pressure tables for all forward gears, with TCC on and off, in addition to all base shift pressure tables. These changes will make your transmission shift more firm and crisp than stock, without feeling too harsh.
For M6 cars we will program the ECM for better launch. When you are in first gear the ECM knows you’re in first and applies the first gear rev limiter. We will program a completely separate rev limiter when you’re in first gear and push the clutch all the way to the floor. This will give you the ability to hold the accelerator and clutch pedals to the floor at the starting line and launch at whatever engine speed is desired. This allows the car to launch under boost. Initially we will set this to 6,000 rpm, which works amazingly well if you slip the clutch with drag radials.
Within the CCM we adjust the active exhaust settings to make them more user friendly. For example, the exhaust baffles will no longer slam open under light throttle at 3,500 rpm.
To make sure we give you the best performance possible we ask customers to fill out our Tuning Questionnaire. (requires that you have a HP Tuners interface)
Tapout Tuning can tune the following control modules:
- ECM = engine control module (2016 through 2019 ATS-V engine settings)
- TCM = transmission control module (2016 through 2019 ATS-V A8 automatic transmission settings)
- CCM = chassis control module (2017 through 2019 ATS-V active exhaust settings)
The TCM (2) and CCM (3) tunes both require additional Universal Credits for the HP Tuners module. If you are ordering one of those options make sure you are adding the correct number of additional credits. Click here to add Universal Credits to your order.
Enjoy access to Scott’s advice, support and retunes with one of our Tuning and Support Subscriptions at a discounted rate when purchased with a new tune. See details in the two products below.