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Upgrade service to add the 6-speed Allison transmission torque converter lockup feature to your AutoSync unit. NOTE: Your AutoSync must be from April-2018 or newer. Your AutoSync also must be properly connected to WiFi and registered on the separate AutoSync.btdieselworks.com website. If your AutoSync is not yet connected to WiFi, follow the “quick-start” guide which can be found in the instructions page on the website here. If your AutoSync is currently on firmware version 2.20 or lower, you may have to send your AutoSync back to us to be refreshed and have the WiFi enabled.
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We currently ship within the US, with more countries coming soon.
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🇺🇸 Ship from USA · On Agora since 2026
$49.95