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Search within a riding style, select an optionBegin typing to search, when autocomplete results are available use up and down arrows to review and enter to select. Selecting an options will take you to a new page. Touch device users, explore by touch.
Free shipping on orders over $79 to Illinois
Orders over $79.00 will receive free shipping. This is a residential delivery service, deliveries Monday through Friday from 9:00am to 8:00pm.
Please double check your selection prior to placing your order, as this item is NOT eligible for return. Please see our full list of return restrictions.
The Gen 4 Optimizer is the AFR+ Fuel Controller that combines an EFI controller with a wideband O2 sensor and AFR gauge to provide a user instant fuel trimming ability and feedback about their vehicle's state of tune.
The AFR gauge allows you to know exactly how well your tune-up is performing at all times.
Kit Includes: AFR Gauge, wideband controller, and Bosch O2 sensor.
WARNING: This product contains chemicals, including (Acrylonitrile), known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. For more information, go to www.P65Warnings.ca.gov.
