My brother had the old Cartech front mount on his LC2 powered Mustang and ran pretty deep in the 10's with it no problem, however, we were not monitoring IATs so we have no real idea how well it was working. As Jay said with it being a cheap China knockoff it's hit or miss depending on the core they used and if you want a "sure thing" you'd be better off going thru a reputable Buick vendor.