Pontiac Trans Am Extreme Stage 4 System. Comes with 2 hand made, hand tig welded aluminum shrouds, 1 for each of our Ext cooling fans, each fan will be on its own shroud, this way neither one takes any power away from the other for maximum efficiency . Aluminized coated blades for extreme high under the hood temperatures to deflect heat and hold shape. The system will also include our fully adjustable extreme fan control system. This system will include wiring, relay, fuse, mounting kit, tuning tool, and two different types of temp sensors, your choice on which you use, for your install.