Ls1 Flash Tool -

A flash tool acts as the bridge between your laptop (where the tuning happens) and your car’s PCM.

At its core, the tool sends a proprietary command set over the VPW (Variable Pulse Width) communication protocol used by GM vehicles. The process generally follows these steps: ls1 flash tool

The LS1 Flash Tool = full PCM control for the price of a cable. A flash tool acts as the bridge between