ThunderMax for 99 - 01 Magnetti Marelli® Models
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ThunderMax for 99 - 01 Magnetti Marelli® Models

$1,088.95
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PN: 309-313 **The ThunderMax 309-312 and 309-313 ECMs are designed exclusively for Magnetti Marelli–equipped EFI Harley-Davidson® models. These units will not function on bikes that have been converted to Delphi EFI. If your motorcycle has been converted to Delphi, you will need ThunderMax part number 309-314, available through Zipper’s Performance. ThunderMax is a performance-driven, award-winning ECM built exclusively for EFI-equipped Harley-Davidson® motorcycles. The 309-313 is designed specifically for Magnetti Marelli–equipped EFI models from 1999–2001, giving these classics modern tuning technology without sacrificing reliability. The kit arrives fully assembled with wide-band oxygen sensors, plug-in harness, AutoTune module, USB communication cable, and everything you need for a straightforward install—no wire-cutting, splicing, or dyno required. This kit also includes a speed sensor wire and sensor harness, ensuring proper integration with the Magnetti Marelli system and a cle

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