KardoTuned is an owner-operated shop for drivers who want real answers, not a parts cannon. We specialize in root-cause diagnostics across all makes and custom GM/domestic tuning, backed by professional-grade tools and hands-on experience. You deal directly with the technician doing the work — no middleman, no upsell.
Check engine lights, no-start and no-crank conditions, misfires, parasitic battery drain, CAN/communication faults, and the intermittent problems that have already bounced between two other shops. We test to the root cause using a Topdon Phoenix Max and oscilloscope-level circuit testing — then give you a straight answer and a clear plan.
Custom HP Tuners calibration for GM trucks and performance cars — LS and LT V8s, Silverado, Sierra, Camaro, and more. We dial in throttle response, drivability, cooling fan and tire-size corrections, and support for your bolt-ons. AFM/DoD management available to address lifter-failure concerns on GM V8s. Every tune is data-logged and verified — flashed right, not flashed and forgotten.
Module setup and programming, ECU/TCM replacement configuration, battery registration, theft/keys relearn, BCM and TIPM setup, and reset procedures. The electronic work dealers charge a premium for — done right.
We find the actual problem, not just the symptom. Proper testing every time — no guessing, no parts cannon.
HP Tuners calibration, Topdon Phoenix Max diagnostics, and oscilloscope-level testing for accurate, repeatable results.
Deep expertise in GM trucks and LS/LT platforms, plus all-makes diagnostic capability for everything else in your driveway.
Every calibration is data-logged and confirmed on the vehicle — tuned for real-world driving, not just a number on a screen.
Owner-operated. The person diagnosing your car is the person fixing it. No service writer, no telephone game.
Clear starting prices and straight quotes. What we tell you is what you pay.
Tell us your year, make, model, and what it's doing. We'll give you a straight answer and an honest quote — diagnostics, GM tuning, or programming, all in Metro Atlanta.