S&S Diesel LBZ Duramax Injectors (2006-2007) (Set of 8)S&S Diesel Motorsport products carry a two year unlimited mileage warranty from the date sold. The warranty is attached to the product itself and can be transferred to subsequent owners within the two year period. Any suspect hardware must be returned to S&S for evaluation, and will be repaired or replaced at S&S discretion. Damage from improper usage and external contaminants, such as but not limited to, water and debris is not covered under