I was getting to the end of my 67 Chevelle Restomod build and needed to tune the LS3 with BTR Cam and 6L80e. I went around and around with some other tuner, and he could never get close to what Derek accomplished at DDTech. It did take a few files back and forth, but he was always accessible and replied almost immediately. In the end, he pushed the magic buttons, and I am totally enjoying it now. Even a couple of months after the tune was completed, I had a question, and he replied immediately. Derek is a rare find. USE HIS SERVICES. You will not regret it.

Car was running ok, but felt like it lacked power especially with a few upgraded parts. Contacted DDTECH and he got the car dialed in within a couple days. Pulls strong and drives like factory! Thanks again!

Hands down this guy is cold.. best my car has ever driven and best power it’s ever made can’t wait to get it up on dyno!! Great people great communication, HIGHLY RECOMMENDED!!!

Absolutely blown away by the tune on my Camaro. The car feels like a completely different animal , stronger, smoother, more responsive and dialed in perfectly. The entire remote tuning process was easy, communication was excellent, and every adjustment made a noticeable improvement. It’s hard to find someone you can truly trust with your car but after experiencing the quality of his work… I won’t be using another tuner. He absolutely nailed it and has earned a customer for life. If you’re looking for someone who knows what they’re doing and takes the time to get your car running right…I highly recommend him.

Derek remote tuned my stock bottom end blower c6z, i asked for his sauce and he delivered it. His service is outstanding and i couldn't believe how fast his responses and revisions were. DDtech is 10/10

Great experience with Derek tuning my 2013 Cts-v. At first I was skeptical of remote tuning my v, but I do not regret it one bit! I never got to fully enjoy the car with the previous tune. After letting Derek work his magic, it feels like a different car. Great communication and very patient. I would highly recommend.

Derek did a great job tune in my 2015 Sierra. Wish I would’ve found him sooner, I would’ve saved me a lot of money not dealing with other garages that don’t know what they’re doing. but now it runs so good. It’s ready to put the Mustangs and Camaro down. Even with my crappy input to help with the truck, he explain things to me so he could get information out of me that he needed to get the truck running correct. Great person to deal with. I will definitely be back with my next project.

I couldn’t be happier with my experience working with Derrick on tuning my LS-based 408 stroker build. From the beginning, Derrick was extremely responsive and professional. His communication was outstanding, and he was often getting back to me with revised files and feedback faster than I expected—sometimes within minutes. No matter the time of day, he was always willing to answer questions, review logs, and explain what he was seeing. What impressed me most was that he didn’t just send a tune and call it good. He took the time to work through the combination step by step, reviewing datalogs, making adjustments, and refining both the engine and transmission calibration until everything worked together the way it should. Throughout the process, I felt like he genuinely cared about getting the truck dialed in correctly rather than rushing to the finish line. The end result is a truck that drives great, responds well, and performs exactly the way I wanted. It’s clear that Derrick knows these platforms inside and out, and his customer service is some of the best I’ve experienced in the automotive industry. If you’re looking for someone to tune your LS-based build, I would not hesitate to recommend Derrick. I’ll definitely be using him again for future projects.

Derek at DDTECH is hands down one of the best tuners I’ve worked with. I had other tuners try to dial in my twin turbo Corvette Z06 and fail, but Derek figured it out and got the car running right. What really stood out was how fast he worked. I would send him logs and feedback, and he would have revisions back to me within minutes. The man literally works like he’s available 24/7, and honestly, you won’t be able to keep up with him. My car is far from a simple setup, but Derek knew exactly what he was looking at and made the process smooth. He didn’t just tune the boosted areas and call it done. He cleaned up all the cruising and drivability issues too, the stuff other wannabe tuners try to tell you is “normal” on a modified car. It’s not normal. It just takes someone who actually knows what they’re doing. The car drives better, cruises smoother, pulls hard, and feels way more dialed in now. Dude is a tuning genius. If you have a boosted or heavily modified car, I highly recommend Derek and DDTECH. He’s the real deal.

I’ve always had a great experience with DDTech tuning. He tuned both of my cars and the entire process always went smoothly from start to finish. He is knowledgeable, professional, and took the time to make sure everything was dialed in correctly. Communication was excellent throughout the process, and he answered all of my questions clearly. I'm very happy with the results and would highly recommend DDTech to anyone looking for a quality tune. Thanks again for the excellent service!