Dynojet TT-1 - Target Tune for Harley-Davidson J1850 ECU 52/10" 2P ServiceNumber_9L3A_12A650_BYA Module / primary service number:

Module / primary service number: 12577955

Catch code: WLD1

Catch code: JUY0

Catch code: CHOO

Application: 1987-1989 Honda CBR600RR

Dynojet TT-1 - Target Tune for Harley-Davidson J1850 ECU 52/10" 2P ServiceNumber_9L3A_12A650_BYA Module / primary service number:The 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