Southern Coast Performance

We will be closed for the entire month of April 2025 due to overseas travel. During this time, we will still be available for remote tuning & consultations. We will resume business as usual on 30 April. Thanks everyone!

Over 15 years of automotive tuning experience with multiple EFI systems from HPTuners, Sniper EFI, Terminator X EFI, Dominator EFI, HP EFI, Megasquirt, FAST XFI, and more! Having trouble with your project and afraid to have it towed for tuning or diagnosis? No Problem! On-site tuning, diagnosis, and wiring services are available for extra depending on the distance.

General Motors Truck 2007-2017 DOD/AFM Permanent Removal ONLY - $150
6L80/6L90 Converter Slip Removal, Permanent Speed Limiter changes, Cooling Fan Settings changes, Trouble Code analysis and removal also available for extra.

Full Aftermarket Calibrations start at $350.

Wholesale tuning and troubleshooting discounts available for Performance Shops.

Spring 2021 special! All basic engine & transmission tunes are $350 from now until the end of April for 1997 - 2017 Domestic vehicles.* An engine tune unlocks the full potential of your vehicle by dramatically improving throttle response, easing torque limits and fueling accuracy. A transmission tune completely recalibrates shift pressure, duration, and scheduling along with converter lockup changes to give your vehicle much more satisfying, crisp and confidence-inspiring shifts.

*Imports and 2018+ models require an extra licensing charge