ThunderMax-50 for 08'-'10 Softail® Models
ThunderMax-50 is designed to improve overall engine performance while meeting approved emissions standards of the California Air Resources Board. ThunderMax-50 utilizes wide-band O2 sensor feedback to continually adjust allowed fuel curves and provides excellent performance under any riding condition. ThunderMax-50 is the most powerful, cost effective, compliant tuning device in the industry. This is the one that works!
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