Mo Betta EFI/ECU Tuning LLC

If I could give out more stars, I would certainly will. Sean went above and beyond to resolve my issue. After my car went through an open heart surgery, it was exhibiting miss firing issues. I took the car back to the shop who did the repair told me to take the car to a performance shop then I found Sean. I am so happy that I meat him cause he was very knowledgeable, methodical, and very careful. He diagnosed the issue and fix it while the shop told me that my turbo might be going bad. That was not true at all because turbo was fine as I expected.

If you are in SoCal, give Sean a chance. You will be happy that you did cause he will get the job done. I am planning on taking my car back to him to upgrade my ECU and get it fully tuned. I am very picky when it comes to who can work on my car, but I certainly trust Sean to work on my 2JZGTE Supra.

Before you decide to do any major modifications to your car, please reach out to him for an advice. Tuner knows best...

Left him a review on Yelp so I thought I'd come on here and do the same. Sean is probably one of the easiest people I have ever worked with. My car had some issues from a previous diagnostic gone bad. That and there were some mechanical issues that were never caught that wasn't giving me the results I was looking for prior. Once Sean figured out what was causing it, we were putting up the numbers I was expecting to see.