10/10 Support and tuning. Derek has tuned my G8 with two different turbo kits and it is nothing short of perfect. Great blend of performance and driveability. You can tell he really cares about his customers with the quick turn around, great pricing, and quality tunes. Will not be using anyone else on any vehicle I own.

Absolute pleasure working with Derek Dunbar. He guided me through every step of tuning my engine, provided detailed instructions, and was always available to answer questions along the way. I was initially concerned about tuning the engine remotely, but Derek completely exceeded my expectations. His communication, knowledge, and responsiveness made the entire process smooth and straightforward. Outstanding service from start to finish. I would not hesitate to work with him again and highly recommend him to anyone looking for tuning support.

Derek did a phenomenal job remote tuning my 2015 suburban after DOD delete and cam swap. Great communication and fast response times to logs and revisions (even when on vacation). Trucks running and shifting great. Thanks again Sir, looking forward to the next project.

Got a remote tune from Derek, great experience overall— Knowledgeable with very quick response & support. Highly recommended!

I can’t say enough good things about the street tuning work that was done on my car. From the moment the tuning was completed, the difference was obvious. The throttle response became much sharper, the power delivery felt smoother, and the car pulled harder throughout the RPM range. If you’re looking for someone who truly understands performance tuning and knows how to make a car run its best, I highly recommend them. The results exceeded my expectations, and I couldn’t be happier with how the car performs now.

Derek is bad to the bone with that lab top and I can honestly say it.. He got the tune in ole red spot on. Dude is jam up and I will definitely refer everyone I know his way

My car was running like shit before Mr ddtech worked his magic. Best remote tuner I know will 1000% recommend. Fast response time too you can’t beat that.

Can’t express enough how pleased I am with the remote tuning DDTech did for me. Had a lot of hurdles on my project C10 fully built gen V swap(not tune related) which required pausing the tuning for an extended amount of time. Derek had no problem picking up right where he left off whenever that email hit his inbox. Truck drives amazingly well and sounds great. 100% recommend anyone that is needing a tune to head his way. I’ll be back shortly for my daily driver.

Derek’s awesome have a zl1 stage 2 btr cam kit bolts ons, upper and lower pulleys, 93 pump gas he’s very responsive and continues to fine tune and make the car as fast and safe as possible the cars perfect and absolute monster definitely recommend him and his work!

Have been working with Derek and DDTECH Tuning for a fee years now, he tunes every car built at my shop and helps troubleshoot when needed, Best tuner in the nation, will definitely recommend. 💯💪🏽