Get accessories for your programmer or tuner and add functionality to the OBDII port on your 2016-2022 Chevy 2.8L Duramax with the OBDII Splitters & Accessories available. Accessories like extension cables for tuners, programmers, or modules and OBDII covers are available for a variety of applications. If you're looking to add extra electronic accessories that utilize the OBDII port on your vehicle an OBDII Splitter is the solution you need. Shop today at XDP and find OBDII Splitters & Accessories from brands including Bully Dog Technologies, Diablosport, SCT, and many more!