Excellent customer service! We’ve had multiple cars tuned here, all with great results! Celina was very helpful and Tony is a genius when it comes to tuning. Thanks UMS!
— Jesse R.

Top notch shop and the best Tuning sevices ! Ums Tuning is the only place I trust with my car. I have been working with them for the last 8 years and have never been let down, keep up the great work ! You guys Rock 👌
— Tyler C.

If I could give Tony and his team more stars I would. Incredibly knowledgeable, super professional and beyond helpful. After having bad experiences with tuners/shops in the past I began the undertaking of building my car on my own. Although I enjoy doing so and learn a lot, it’s comforting knowing when my car is at UMS it is great hands. Stoked to have my build back and making power (even though Tony is not satisfied). On to the next stage of this build but I will be back when I’m ready for more of horsepower wizardry from the boys at UMS! Thanks fellas and lady �
— Taylor S.

I always have had a great experience with UMS, had multiple cars tuned with great sucess. Had multiple mechanical failures, of which when modifying vehicles can be expected, and had amazing support from Tony both on and off the track at the courtesy of his time even though the failure was never the fault of the shop. Always my first recommendation for tuning in the valley.
— James E.

Great shop, good people. The staff is knowledgeable and answered my long list of stupid questions. Super fair pricing. Reliable tunes. Have had multiple cars tuned here, my vehicle and customer vehicles. None of those vehicles have had any issues and because of that I’m constantly recommending UMS to everyone. When describing what’s been done to one of my vehicles you can hear me saying how there is only one shop in town that touches my cars and that’s UMS. Thanks again guys, I’m looking forward to the next time I bring a car in.
— Brandon C.

5 Stars for Tony and UMS.
Nobody better and the generosity of his time and knowledge is second to none.
Can’t count how many times he’s been willing to help people, me included, on and off track when we needed support or trouble shooting issues.
— Jim C.

After another shop messed my tune up I brought my car in, everyone was professional and respectful. I have had zero issues in the 3k miles since and the team over at UMS did me right when everyone i was dealing with when building my car was trying to basically rob me Tony and the guys bent over backwards to help. Truly a professional shop thanks guys!!!
— Joe E.

Great customer service and great tuner in AZ.
Highly recommend!!!
— Chris K.