CP3 Regulator Extension Harness for 11-16 6.6L Duramax Fleece(0)No Reviews yet SKU: FPE-HAR-CP3-EXT $35.69 $41.99 Quantity discounts available QuantityPrice Quantity -+ Is Add-On Item Main Item for AddOn MPN Is optional Add-On Item Main Item for Core Charge TuneRequest FileID Add to Shopping Cart Details Regulator extension harness for use with Bosch CP3's used in 6.6L Duramax applications. Fitments DetailsFitments Back DetailsRegulator extension harness for use with Bosch CP3's used in 6.6L Duramax applications. Back Fitments Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review