GM Custom Tuning

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.

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.


  • Electronically disable your DOD system to help prolong your engine life, as well as tuning for full mechanical delete.

    • 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.

    • Torque Management - Fine tuned torque management for strong yuet smooth power.

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

  • We recalibrate shift points, shift speed, pressure, and torque management for smoother, more consistent gear changes. This eliminates the clunky, converter shuddering shifting common in stock 8L90/10L80 speed calibrations and gives you predictable performance on the street or track.

  • Press the button below to go to the custom tuner order form. Use the forms to fill out your order. Tuning requires HPTuners

  • All tunes will include 90 days of complementary datalog reviews and/or personalized adjustments to cover adjustments such as firmer/softer shifts, increased/decreased throttle response, etc. Changing or adding modifications to the vehicle that would require a tune adjustment would not be considered a “preference-based adjustment” and would not be covered by a complimentary update.

Get Your Custom Tune →

Tune Order Form