Dynojet TT-1 - Target Tune for Harley-Davidson J1850 ECU 52/10" 2P ServiceNumber_9L3A_12A650_BYA Catch code: CHOO

Catch code: CHOO

Catch code: AZE0

Module / primary service number: 12577955

Catch code: ZYL0

Dynojet TT-1 - Target Tune for Harley-Davidson J1850 ECU 52/10" 2P ServiceNumber_9L3A_12A650_BYA Catch code: CHOOThe Dynojet Target Tune for Harley Davidson J1850 ECU 52 10" 2P 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