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July 2024 by Grady Raymer
Have needed help on and off for almost 20 years. Knowledge an experience counts for ALOT. Very happy
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March 2024 by Ron Galasso
Umberto did an outstanding job of rebuilding my '37 Ford Hotrod, the engine, radiator, front & rear suspension, electrical & guages for a fair price. Thank You Umberto !
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September 2023 by Eason L.
Adequate serivice and a good place for muscle car enthusiasts
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April 2023 by Robi Petersen
Great place to bring your old classic car for repairs cuz they still know how to do them right and a lot of people won't touch a classic car and don't know how to work on them
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January 2023 by AJ carrillo
My experience began with the cheerful greeting from Sylvia, welcoming me to the shop while she was multi tasking. It was grest to learn that Umberto remembered working on my Cobra. It had been a few years but as you know when it comes to our cars, we find comfort and trust when the mechanic knows & cares for it as if it was their own. I asked and listened to the passion in his voice as he explained the other modifications / projects going on the shop. What a feeling, now I'm ready for another mod. I believe you will too.Services: Wheel alignment
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October 2022 by Captain P.
They ordered and installed a Ford Performance X-pipe for my new '21 Mustang stick-shift GT. Boy, what a difference. The whole process was a delight with helpful insight provided upfront, and installation performed in a timely and professional manner. I'll take my Mustang to these professional people for all my future performance upgrades.
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September 2021 by Craig Berman
The Best, nobody does it better. 1000% Satisfied ???
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September 2021 by Brian D.
I absolutely love this place. We have Jeep's and Dodge chargers. They are masters of that type there. American Muscle baby. Stay away from trash dealers who literally wanted to charge me twice as much. I didn't even call these guys the last time, I just rolled in and they always go above and beyond. They are geniuses and honest and reliable and I will never take my car anywhere else. Don't be an idiot. If you got a high performance car or an American made bad a*** go here. You won't regret it.
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August 2021 by Adam L.
GRC Performance is the place if you want to Supercharge your car. I have a 2016 SS Camaro and I wanted to install a supercharger but I wasn't sure of which one to buy. With Sylvia's & Umberto's expertise they helped me decide which way to go. I left my girlfriend (the SS) at their shop & went home to my wife. Sylvia called me a few days later & said my car was ready. I'm blown away by the increase in horsepower. At half acceleration the SS is scary fast, at full power it's pee your pants fast. I went from a muscle car to a super car in a couple of days. In all my years of dealing with speed shops GRC is by far the best. Umberto really knows about high performance cars. He is absolutely the best! The install looks like a factory install. As Sylvia promised my car was done on time & at the price quoted. I trust both of them so much that all my mechanical work on my cars will only be done at GRC Performance. Thank you Umberto & Sylvia!
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March 2021 by David D
Pleasant to talk to, still waiting to hear back...
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December 2020 by Scott Davis
If you want it done right, go to GRC. Umberto knows what works. Had a full engine rebuild and numerous mods done to my Mustang and it performs.There are few shops you can trust and GRC is one of them. He is busy for a reason!
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August 2020 by John Winkler
Like them a lot going back
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June 2020 by Bruce Fan
Bought a hood scoop for a mustang online , but never ship out the item and no answers to my mails . Really bad thing . I can not recommend this shop!Can you give me a email address , so I can send the order to this address?
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April 2020 by robert c.
Another great job from umberto and GRC performance, this is my second review on work on my 3 valve mustang gt, first shop told me I had a blown headgasket and upon further testing these guys figured out it was my cool packs and some connections, saved me a lot of money cause they no mustang's and there honest, won't take my mustang any place else, great job guys
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February 2020 by Lloyd S.
Umberto built my 66 Mustang about 5 years ago. We swapped out the stock 200 and added at 302, T5Z, 9" rear, and upgraded suspension and converted to 5 lugs. I don't let ANYONE else touch her. Unfortunately last year I had a rear seal leak and I was too far away to tow. I had to have someone else repair and it's been a nightmare for the past year. This week I brought her back because the leaking started again amd vibrations were getting worse. Umberto got it back to the way it should have been.....and it took less than half a day! I also take my daily drivers to him..... Best prices and repairs and service I know will be done right!
