GM LS & LT Performance Specialists
Custom tuning, performance upgrades, AFM/DOD deletes, and advanced diagnostics
for 98+ GM trucks, Camaro, Corvette and Cadillacs.
⭐ 23+ Years Experience | Trusted by customers throughout the US
210-626-0278
WHY CHOOSE NELSON PERFORMANCE
Proven GM performance experience, advanced diagnostics, and trusted results for customers who expect the job to be done right.
23+ Years of Experience
Serving GM truck and performance vehicle owners with proven results, technical expertise, and real-world problem solving.
GM LS & LT Specialists
Focused on the platforms we know best, from diagnostics and tuning to cam upgrades, DOD/AFM deletes, and performance builds.
Trusted by Customers Nationwide
Vehicle owners travel from across the country for our diagnostic ability, tuning knowledge, and performance experience.
Performance Services
Diagnostics, tuning, and performance upgrades for GM LS and LT platforms.
Diagnostics
Accurate troubleshooting to identify the real problem before replacing parts.
Custom Tuning
Calibration for drivability, reliability, and performance using proven tuning strategies.
Camshaft Upgrades
Performance cam packages designed to increase power while maintaining drivability.
DOD / AFM Deletes
Solutions to eliminate common lifter failures and improve long-term engine reliability.
Performance Builds
Engine upgrades and performance packages built around your vehicle and goals.
Mail-In PCM Tuning
Remote tuning services available for customers across the United States.
See What Our Customers Are Saying
Take a look at some of our recent builds.
Family-Owned. Texas-Built. Performance-Driven
Real Experience. Real Results. Since 2002
At Nelson Performance, we live and breathe GM performance. Every tune is crafted with precision, every build is backed by real-world experience, and every customer gets the one-on-one attention they deserve. From diagnostics and drivability to cam packages and custom tuning, we are committed to delivering results you can feel every time you hit the throttle.