GM Custom Tuning

Covering everything from towing with that bowtie HD, annoying your neighbors with that choppy cam, to boosting that junkyard LS, DCPerformance has your covered!

At DCPerformance, we offer precision custom tuning for most GM vehicles, from factory-fresh daily drivers to fully built, boosted race machines. Using HP Tuners, we fine‑tune your vehicle’s calibration for maximum performance, drivability, and reliability—tailored to your specific setup and goals.

Whether you’re seeking a smoother, more responsive daily driver or pushing a high‑horsepower build to its limits, we’ve got you covered. Our tuning services include:

  • DOD/AFM Disable – Permanently deactivate Displacement on Demand for improved performance and reliability.

  • Timing Optimization – Dial in ignition timing for safe, efficient power gains.

  • VE & MAF Calibration – Accurately adjust fueling for naturally aspirated, forced induction, and high‑flow setups.

  • Transmission Tuning – Improve shift points, firmness, and torque management for a sharper driving experience.

  • Fuel & Airflow Adjustments – Ensure optimal air/fuel ratios for your combination, whether stock or fully modified.

  • And More! - Each custom tune is tailored to your specific setup

Every tune is built specifically for your vehicle, considering all modifications, fuel type, and intended use. We don’t use generic “one‑size‑fits‑all” files—your calibration is custom to you.

From your mild street cruiser to your track‑ready GM monster, DCPerformance has the experience, tools, and dedication to get the most out of your build while keeping it safe.

Tuning requires HPTuners.


Get Your Custom Tune

GM Custom Tune Order