The EVO-ALL is an integration module that connects to the remote start that allows it to talk to the vehicle to allow it to start. There are multiple T-harnesses available to make your installation faster and look more OEM. The EVO-ALL has multiple CAN controllers built-in so that it can talk to more than one CAN network in a vehicle if applicable. The EVO-ALL also comes pre-flashed for many vehicles, so there may be no need to plug the module into a computer and make adjustments. The module also is full high speed 2-way data to data that allows it to connect with a minimal amount of connections to the remote start system.