SPAex SFI3 M - SPA Extreme System, 3lb. Mechanical - SFI 17.2 Certified SPA Extreme® line of SFI certified suppression systems has added a smaller, lighter, more affordable option to its arsenal. Great For Formula and Small Cockpit Cars SFI SPECIFICATION 17.2 EFFECTIVE: APRIL 19, 2019* PRODUCT: Single Seat Open Wheel Rear Engine On Board Fire Suppression Systems All Extreme...