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ThunderMaxis an industry award winning
35% polyester
10% polyester
• Brushed fleece fabric inside
Thundermax 04-11 Dyna/ 08-10 Rocker C/ 10-13 Sportster Apparel ThunderMaxis an industry award winningPart Number: 309 485 ThunderMax is an industry award winning, performance ECM designed specifically for EFI equipped Harley Davidson motorcycles. This highly advanced, stand alone tuning system utilizes proprietary AutoTune technology with wide band oxygen sensors to deliver unmatched performance and rideability. ThunderMax comes 100% assembled, ready to install with no wire cutting or splicing required. Simply replace the factory ECM and oxygen
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