Trifecta specializes in delivering custom powertrain control module (PCM) programming to the high performance community. Trifecta Performance offers both local "dyno" tuning services in the Seattle, WA area, as well as mail order custom PCM programming services.

Trifecta has a tuner, that allows car enthusiasrs to perform their own PCM programming, quickly safely and not requiring a PCM replacement.

To get more information or have questions log on to our Tune Center Forum (use the below link).

Note: Installing of this tune may or may not void your vehicle's warranty. ChevyHHRWorld will not be held responsible for any cost or damages to any vehicle, person or item. This tune will be installed at your own risk.

Please note - UPS has kindly requested that our customers refrain from burning rubber until they are out of their parking lot after shipping the tuner back.