Backend Flash for Kia Stinger / Genesis 3.3T

Designed for use with Piggyback Systems (JB4, ProTuner, RaceChip)

  • A Backend Flash Tune is a type of ECU flash that modifies your vehicle’s fueling, ignition timing, cam timing, torque limits, and other essential engine parameters. Unlike a full standalone tune, a backend flash works in conjunction with a piggyback system, which remains in control of boost pressure. This makes it an ideal solution for enthusiasts who want to unlock more power, refine drivability, or add features like exhaust pops and bangs, start/stop system disable, rev limit changes, and more. If you're looking to enhance performance while retaining piggyback boost control, a backend flash is a powerful and flexible tuning option.
  • Pricing & Revisions: Our Backend Flash Tune is priced at $189 USD and includes full support to ensure it functions correctly on your vehicle. If any adjustments are needed, we provide free revisions until your car runs exactly as it should — satisfaction guaranteed.
  • FREE Map6 / User Mode Tuning: As part of the tuning process, we analyze your vehicle's data logs to develop a tailored boost control strategy using Map6 (JB4) or User Mode (ProTuner), ensuring optimal performance and safety. In some cases, the provided base maps may already deliver excellent results — if so, we’ll let you know and proceed accordingly.
⚠️ Emissions Compliance Notice:
We do not disable or modify emissions systems (e.g., catalytic converters, O2 sensors, EGR, EVAP) or related check engine lights. Please do not request these services — the answer is always no.

These actions are prohibited under 42 U.S. Code § 7522 of the Clean Air Act and carry serious legal penalties.
🚀 Purchase Your Tune Now
Only $189 — Free Revisions Included

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