Southern Coast Performance

07/15/2025

Holley Terminator X tune on this absolutely immaculate Pontiac Lemans

04/04/2025

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!

02/08/2025

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.

07/19/2022

Hey Myrtle Beach!

Southern Coast Performance offers both tuning and installations for domestic cars and trucks. For tuning, we support a wide array of domestic cars & trucks for calibration changes like automatic shift points, pressures, torque management, engine fueling, spark advance, fan speeds, rev limiters and speed limiters. This includes everything from your stock Silverado, to your custom twin turbo Camaro, to your EFI swapped Bel Air. For installations, we can handle everything from complete engine rebuilds, camshafts, torque converters, clutches, header installs, et cetera.

03/18/2021

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

01/28/2021

From start to finish: 150k mile camshaft install & 6.0L refresh/rebuild on a neglected 2009 Pontiac G8 GT.

01/22/2021

Freshly rebuilt 6.0L L76 with AFM/DOD delete and a healthy camshaft. Bringing new life and new levels of performance to this 150k mile G8 GT motor.

Removed, rebuilt, reinstalled and tuned by Southern Coast Performance

12/08/2020

Southern Coast Performance Tuning merchandise! Contact us for yours today!

11/16/2020

Twin Turbo 6.0 4L80e 2005 GTO
Built and tuned by SCP Tuning

10/25/2020

08/07/2020

Two GM trucks in today for DOD/AFM Disable and a quick performance tuneup!