Justin made the absolute most power out of anyone by tuning my car. It's funny because he had only tuned a few of them before, and all of a sudden broke a record on a brand new platform. I'd recommend him to anyone who would like to have the best driveability, with the most power under WOT (safely). Thanks for making the ST's 13 second cars!

Confidence inspiring tuning work and fantastic results. Justin will be handling my car, period. I have some new goals for this Spring, and I'm anxious to get dialed in the right way with a Freektune!

Cant wait for Justin to come out to CA. it's going to wicked sweet. Look forward to a long friendship. Thank you for all the knowledge you have shared with everyone.

Couldn't ask for anything more from my tuning experience with Justin. My car is running amazing and pulls like a freight train. On top of that, dealing with Justin was a pleasure. I would 100% recommend and use Justin again for all of my tuning needs! Thanks man!

I am now working on my 3rd tune with Justin on my Mazdaspeed 6. Started fully bolted and he was able to get optimal power out of my car. Once the mod bug got me again I went big turbo and Justin again was willing to help get my car dialed in. He was extremely patient while I encountered countless hard part issues. Finally the car put down a safe 383AWHP and 385AWTQ. Justin then was able to answer all of my questions and help me determine what next steps to take to get the engine built. Justin is now helping me with tuning in the 5th port and meth injection and hopes to max out the GTX3076 soon. He has shown excellent platform knowledge and always seems to be available to help with any questions that arise. I cannot thank him enough for all his help.

Well, I can't begin to Thank Justin enough for all he does for the community and how amazing his tunes always are. I've been tuned by him for about 9 months now and anytime I have a question he answers it and will address any concerns I may have. I must say, Justin has become a good friend of mine and he will continue to tune my car anytime I need it tuned or touched up. Not to mention my FREEKBUILT longblock I have awaiting, I cannot express how great of a guy and tuner he is. Top notch always. Thanks Justin!

I had my vehicle tuned by justin twice now and it has been amazing both times. He communicates quickly and is very willing to explain everything in detail to help you not only enjoy the tune but also to understand what is being done. I will definitely be getting another freektune when I go big turbo.

I have worked for Justin ever since I first got my 2011 Mazdaspeed 3 almost 3 years ago; Justin was a pleasure to work with, with effortless communication back and fourth it seemed like every time I sent an email, I had a response almost instantly. Justin works with you to meet your goals, and will provide you with the knowledge and background that is needed in order to obtain that goal. I have been running my car tuned by Justin without a single hiccup for over 2 years, and I couldn't be happier; recommending friends to Justin that have just fell in love with their car after a tune. A tune is the single most noticable "modification" you can do for your car, and Justin is one of the most knowledgeable and experienced when it comes to this platform. -Ming