5° of throttle and every 256 RPM
Please view the ThunderMax 50 application guide for "STREET APPROVED" & ARB compliant produ
"Street Approved" / California ARB E
and supported in the USA for over 30 years
meant specifically for signal control (kill switch
ThunderMax for 2001 - 2010 Softail® Models Stage 3 5° of throttle and everyPart Number: 309 460 ThunderMax is a performance driven, award winning ECM built exclusively for EFI equipped Harley Davidson motorcycles. Designed as a stand alone replacement for the factory ECM, the 309 460 arrives fully assembled with wide band oxygen sensors, plug in harness, AutoTune module, USB communication cable, and everything you need for a straightforward installno wire cutting, splicing, or dyno required. At its core, ThunderMax uses