This is a Snow Performance Boost Cooler Water-Methanol Injection Kit, specifically designed for diesel engines. It's a Stage 3 kit with MPG-MAX technology, aiming to enhance fuel economy by up to 3 MPG and improve performance. The kit is in excellent condition, appearing new in its original open box.

It includes all components necessary for installation, such as the pump, tubing, wiring, and gauges. This system is ideal for those looking to optimize their diesel engine's efficiency and power.