Mic H.
2/17/2025
Great people. Great work. Contact Lisa for all your needs. I have been using the exclusively since 2005.
NELSON PERFORMANCE
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10034 Roosevelt Ave
San Antonio, TX 78214
Nelson Performance in San Antonio, Texas offers high-quality GM performance tuning services, specializing in electric fan conversion harnesses for 1999-2007 trucks and SUVs. Their team of ASE certified technicians provides tuning solutions for improved performance, gas mileage, and towing power.
With a focus on performance upgrades while maintaining drivability, Nelson Performance also offers maintenance, installation, and diagnostics services for GM vehicles. Customers can expect professional and dedicated service from their highly trained staff.
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Reviews
4.05 reviewsJosh L.
2/7/2025
Had a AFM delete done here a couple of years back on 2018 Silverado 5.3, Truck is still running smoothly some 20K miles later. I would trust this shop with anything related GM.
Matthew V.
1/22/2022
Best tuner in the area. Amazing staff , great to communicate with and super helpful answering any questions or concerns. Highly recommend
Troy G.
8/2/2019
After they have your money good luck on getting a reply. Buyers beware , I am just going to have my truck put back to stock and have someone that stands behind there work tune my truck
Larry C.
3/23/2020
Nelson performance is by far the best tuner anyone can use. I have had about 20 tunes through them and they have all been great. if I had to make a few tweaks I just let them know and they sent...
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