Ask a Question

Technical Questions

Can't find an answer in our Help Center? Submit a question, and we'll get back to you soon.

Need Business/Order Related Support?

Search our Help Center
Get answers to business and order questions from our experienced Customer Service representatives.

Website Feedback

How are we doing? We really are interested in knowing how you feel about DX Engineering. Contact us with your comments - good, bad, great, so-so, or whatever. We want to hear from you!

Take Control of Every Shift with a TCI Wireless EZ-TCU Transmission Controller

Modern electronic overdrive automatic transmissions deliver hard-launching acceleration and relaxed highway cruising, but tuning them is often anything but simple. TCI’s Wireless EZ-TCU Transmission Controller changes the game, making it easy to dial in the shift quality and performance you want directly from your smartphone or tablet.

Designed for GM 4L60E, 4L65E, 4L70E, 4L80E, and 4L85E transmissions as well as TCI’s 4X and 6X automatics, the EZ-TCU uses a Bluetooth-enabled wireless module to adjust shift points, firmness, aggressiveness, and torque converter settings on the fly. Real-time feedback with live data monitoring, data logging, and self-diagnostics help you fine-tune transmission behavior for any driving situation. Multiple calibration options allow you to switch between driving styles so you can cruise comfortably on the highway, then step up to a more aggressive calibration when you pin the throttle wide open.

As an added bonus, TCI includes a built-in anti-theft feature that allows remote transmission disabling for extra peace of mind that someone else won’t take your hot rod for a joy ride.

CHECK OUT THE TCI WIRELESS EZ-TCU TRANSMISSION CONTROLLER HERE