Elly C.
9/26/2025
Aaron is the Man! I can always trust him with whatever my 328i needs and I've brought him some challenging requests but he's a perfectionist so he always figures out a way to fix things. He's...
Mays Performance
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(14)
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201 S Wineville Ave Ste D
Ontario, CA 91761
Mays Performance is a reputable automotive shop based in Ontario, CA, specializing in performance upgrades and modifications for a variety of vehicles.
With a team of experienced technicians, they offer services such as engine tuning, suspension enhancements, and custom fabrication to enhance the performance and aesthetic appeal of cars.
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Also at this address
Reviews
4.514 reviews
Sam S.
8/31/2025
DO NOT TAKE YOUR MITSUBISHI HERE! Took my Mitsubishi VR4 here on Jan 2024 for an engine rebuild, and on August 2025 I had to ask for my car back! This engine builder FULLY CHARGED ME FOR...
Frank Sanchez ..
8/2/2024
Aarons a great guy to work with. Took on my headache & has given it thorough attention to get it repaired. There's a list of things wrong with the car that he has been sorting through to ensure...
Garrett S.
11/6/2024
Best service as well as prices! Honest mechanic I highly recommend will be back in future !
Ezequiel T.
12/19/2024
Very good and honest mechanic. Got my car rebuilt and it's running better than ever! Recommend ats-v's to come to this shop.. he knows what he's doing.
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