KTuner for 08-12 Accord i4 LX/LX-P/LX-S/EX/EX-L including PZEV models
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.
Dyno Testing Results Can Be Found At The Bottom Of The Page
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:
08-09
37820-R40-A11 through A19
37820-R40-A51 through A59
37820-R41-L51 through L59 (PZEV)
37820-R42-A01 through A09
37820-R42-A51 through A59
37820-R42-A81 through A89
37820-R43-L51 through L59 (PZEV)
2010
37820-R40-A21 through A29
37820-R40-A71 through A79
37820-R41-L61 through L69 (PZEV)
37820-R42-A11 through A19
37820-R42-A61 through A69
37820-R43-L61 through L69 (PZEV)
11-12
37820-R40-A31 through A39
37820-R40-A81 through A89
37820-R41-L71 through L79 (PZEV)
37820-R42-A21 through A29
37820-R42-A71 through A79
37820-R43-L71 through L79 (PZEV)
KTuner feature matrix for 08-12 Accord (BETA means the feature is currently in testing phases):
| Feature | Release | BETA | End User | Dealer Tuning | Reflash | |
| Real-Time Logging | 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 | ||
| 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 Has Been Removed. Please adhere to your tire speed limitations and note this feature is for off-road use only.
Dyno Plots
2012 LX Auto – Click To Enlarge
Tuning done on 91 Premium fuel in Arizona at 1100 ft.
Dashed Red – Baseline – With RV6 PCD, TBS, Pulley
Dashed Pink – +13tq, +15hp – Tuned with RV6 PCD, TBS, Intake Port, Pulley
Solid Blue – +10hp on the top end approaching the limiter – Tuned with RV6 PCD, HFC, Pulley, Intake, 3″ Exhaust
2008 EX-L Manual – Click To Enlarge
Tuning done on 91 Premium fuel in Arizona at 1100 ft.
Dashed – Baseline – Factory Tune With Intake
Solid Green – +17tq, +13hp – Tuned With Intake