Add functionality to the OBDII port on your Gas Vehicle or find the accessories your tuner or programmer needs with OBDII Splitters & Accessories. Extension cables for tuners, programmers, or modules, along with OBDII covers, are available for a variety of applications. OBDII Splitters allow you to easily add multiple electronic accessories that use the OBDII port on your vehicle. Visit XDP and find OBDII Splitters & Accessories from manufacturers such as Bully Dog Technologies, Diablosport, SCT, and many more!