− Decrease quantity for Proton Solenoid, Nitrous/Fuel, 250 hp Flow, Male -4 AN, Male -3 AN, Black Anodized, 2 Inlets, 2 Outlets, Kit Quantity + Increase quantity for Proton Solenoid, Nitrous/Fuel, 250 hp Flow, Male -4 AN, Male -3 AN, Black Anodized, 2 Inlets, 2 Outlets, Kit Add to cart