Dynojet TT-2 - Target Tune for Harley-Davidson J1850 ECU 10/10" 4P ServiceNumber_1S7F_12A650_AA Catch code: STK1

Catch code: STK1

Part number: FP5A-12A650-YA

Part number: EP5A-12A650-AEA

We are not providing you with a physical part

Catch code: JVS1

Dynojet TT-2 - Target Tune for Harley-Davidson J1850 ECU 10/10" 4P ServiceNumber_1S7F_12A650_AA Catch code: STK1The Dynojet Target Tune for Harley Davidson J1850 ECU 10 10" 4P is built for tuning setups where wideband feedback is part of the plan. It gives the calibration process better data to work from instead of relying only on a base map and guesswork. Why It Matters Adds wideband feedback support for compatible Dynojet tuning systems Helps refine fueling when the vehicle setup changes A strong add on for builds where accurate air fuel data matters