Features:<br> The plugs will go in place of the NOX and DEF module. The looped wires will provide a closed signal back to the ECM for proper operation.<br> For use with an Aftermarket Exhaust System.<br> A new engine calibration is required.<br> With the plugs installed you can remove the modules and store them if you plan on going back to stock.<br> Specifications:<br> : For Alpha Rider<br> Conditions: New<br> Type: CAN BUS Plugs<br> Material: High quality and durable<br> Color: as pictures shown<br> Qty: 4pcs/set<br> Fitments:<br> For Duramax Diesel L5P 2017-2019<br> Package Included:<br> 4 x CAN BUS Plugs<br> NOTE:<br> Due to the light and screen difference, the item's color may be slightly different from the pictures.<br> All dimensions are measured by hand, there may be small deviations.<br> This Is Aftermarket Replacement Item.<br> Please check your correct replacement parts before purchase, the picture show more detail, thank you.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store