Return Policy ONLY accepts returns under the following circumstances: Smarty has been unopened and packaging has been undamaged It is within 15 days of ordering You have received an RMA# and instructions from one of our sales staff. (email Other than that, we cannot help. The manufacturer does not give us credit when we return products that have been used or have been opened. If you have any questions about returns, please email our sales staff at If your order is older than 15 days, your packaging has been opened, we can suggest that you resell your programmer on eBay or on a diesel forum If we do accept your return, we do charge an 10% restocking fee.