If a return is granted the merchandise is subject to a 25% restocking fee. Please contact us with in 24 hours of receiving merchandise if there are any issues. Please contact us if you need further assistance (855) 648-6773 or email [email protected] By purchasing or installing any of our high performance products, you release Dynamic Diesel Performance & Machine Inc. of any liability and assume all responsibility for making sure your vehicle complies with all local, state and federal emissions regulations. By installing any of our high performance parts, you assume any of your actions and assume all liability.