
Key Features & Specs:
Fitment:
The HP Tuners Diesel Switch H-M04-00 allows drivers to switch between multiple custom tunes on supported GM 6.6L L5P Duramax trucks. Featuring a durable knurled aluminum knob with a six-position rotary dial, this switch enables quick access to up to five custom maps directly from the cab. The included 5-foot OBDII pass-through cable provides a simple plug-and-play connection, making it easy to install and control different performance calibrations on supported vehicles equipped with the GM E41 ECM.