Since there's so many fakes out there I'm nervous about buying one from just anywhere. I already know if I see a price tag of $150 or cheaper then it's probably a knock off. Anyone ever deal with " Quantum Fuel Systems" or known also as "
www.highflowfuel.com" there's comes with a AN fitting and check valve for $190, I see them on summit around $230 and Frsport for $253 both without a AN fitting or check valve. thanks for any help you can give me.