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Stepped 1-3/4" to 1-7/8" headpipes
NOTE: Includes 18m to 12mm O2 sensor port adapters
Plug-and Play
This is the new J&M 400w ROKKER® XXR EXTREME Custom 2-speaker & amplifier installation kit for 2014-2020 Harley® StreetGlide or Ultra with stock Harley 4
Part # 11315A
ThunderMax ECM Integral Auto Fuel Management System Harley Touring Bagger 23.5+ VVT and Non-VVT FXCWC Stepped 1-3/4" to 1-7/8" headpipesBRAND NEW PART# 309 605 Fitment: 2023. 5 and up Center Cooled Models VVT or non VVT Touring models 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 309 605 arrives fully assembled with wide band oxygen sensors, plug in harness, AutoTune module, USB communication cable, and everything you need for a straightforward
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