Model Number

LPG CNG Sequential Injection System

SIS is the Stefanelli Group's LPG fuelled sequential injection system that can be adapted to any type of 4 up to 8 cylinder cars with an electronic ignition.
SIS is a product of the latest generation, easy to install and just as easy to maintain. It is equipped with a very good electronic management system that is supported by efficient mechanics.

Apart from being compact and easy to fit into the engine compartment, the single-stage reducer is able to deliver fuel to the electro-injectors at a constant pressure.
The LPG central unit receives the signal directly from the central unit of the vehicle, it re-elaborates the signal and conveys it to the electro-injectors, guaranteeing a performance equal to that of a petrol-fuelled vehicle.

The electro-injectors designed and manufactured by Stefanelli Group are calibrated by a computerized automatic assembly line, which allows an exceptionally precise calibration. Moreover, our electro-injectors were designed and tested so as to render them extremely easy to service also directly by the installer. The electro-injectors of Stefanelli Group are extremely resistant to dirty gas.