Absolutely the best tuning experience you will ever have. Derek took my car from not running to drivable on a Friday night at well after 10pm. After a few driving logs the car is an animal. Revisions come back almost instantly. Had a few issues with the car and by just seeing the logs he pointed me in the right direction. DDTECH is the only option for remote tuning on LS engines.

Always top notch support, very responsive and helpful. Tuned my 2013 ctsv 427/kong2650 setup and thing is an absolute monster.

He remote tuned my turbo truck. Communication was very fast and answered any questions I had. Truck runs great .

I’ve been dealing with Derek for this past month getting my 04 LSA gto remote tuned. First this guys work and customer service is nothing short of excellent. I’ve delt with plenty of tuners and this by far the best experience I’ve had, car runs great, and he’ll answer any questions you have! Highly recommend for sure!

Derek Dunbar with ddtechtuning is an absolute pleasure to deal with! He has been on the remote tuning for my freshened up LQ4. Just did a little cam upgrade, some headers and a fully new gasketed motor. His response time is impeccable. The fine tuning from the first revision to the sixth revision was awesome to see and feel. Also sent me a separate tune for just regular 87 octane so I don't have to run 91 all the time.

Cannot recommend this guy enough! Still have a follow-up log to send him here in a few weeks to make sure everything is up to snuff but I'm sure that if there are any changes to be made they will be made in a very timely manner!

hands down wouldn’t go to anyone else , worked out all of my issues that i couldn’t get done with any other tuner healthiest and fastest the my car has ever been

Excellent communication and rapid response times. Tuned 2 5th gen ZL1’s for me the same week and both accomplished pb dragy times!

If I could give derek 10 stars I would. He is by far the most helpful, knowledgeable and friendly tuners I have ever used. He has done a few vehicles for me and is my go to guy! I cant thank him enough for being as great as he is! Its really hard these days to find someone who not only responds instantly to keep the shop moving but he also is beyond thorough. Every customers vehicle we have built and had Derek tune is beyond happy. He makes sure the driveability is perfect, cold starts are as smooth as factory and they drive flawless. Derek you sir are an asset to us here! We all appriciate you a ton! Thank you for being as great as you are!

Best experience, hands down! Tuning was a breeze, and Derek took the time to explain all the log info to me. It’s so good to know there are still honest and trustworthy tuners out there.

If you’re on the fence about using DDTech — just pull the trigger already! I only wish I had done it sooner.

Remote tuned my HCI C6Z06 project. communicates well, responsive, got me setup with a base calibration for my first startup on the weekend. car is running great and drives excellent with the cam. Will be using DDtech for all my future tuning needs!