KTuner for 12-15 Civic Si
KTuner is for off-road research and development testing only. Every vehicle should be flashed back to factory before being driven on a public road.
What are my options?
• KTunerFlash V1.2 End User System – Hardware/software. Datalog And Make Your Own Changes! – $449
• KTunerFlash V2 End User System – All-In-One Display/Flash Hardware+Software. Datalog and make your own changes – $649
How do I get KTuner?
• Contact a dealer for dealer testing or to order a KTuner kit.
Part numbers for usable ECUs include:
37820-RX0-A01 through A22
KTuner feature matrix for 12-15 Civic (BETA means the feature is currently in testing phases):
| Feature | Final | BETA | End User | Dealer Tuning | Reflash | |
| Real-Time Logging | X | X | X | |||
| Real-Time Tuning Mode | X | X | ||||
| Injector Sizing | X | X | X | X | ||
| Ignition/Fuel Tuning | X | X | X | X | ||
| VTC Tuning | X | X | X | X | ||
| Knock Tuning | X | X | X | X | ||
| Throttle Control Maps | X | X | X | X | ||
| Rev Limiter Settings | X | X | X | X | ||
| 2-Step Settings | X | X | X | X | ||
| 4 Bar Map Sensor Support | X | X | X | |||
| Speed Density Fueling | X | X | X | |||
| Expanded Tables For Boost | X | X | X | |||
| VTEC Window Control | X | X | X | X | ||
| Closed Loop Control | X | X | X | X | ||
| Disable Sensors | X | X | X | X | ||
| Fuel Cut Parameters | X | X | X | X | ||
| Fuel Correction Parameters | X | X | X | X | ||
| Ignition Correction Parameters | X | X | X | X | ||
| Idle Control Parameters | X | X | X | X |
Speed Limiter removed. Please adhere to your tire speed limitations and note this feature is for off-road use only.
Dyno Graphs:
Tuning at 1100ft on 91 octane
Stock intake
Full-Race High Flow Performance Cat
Full-Race Exhaust System