Ford Duratec 2.0 & 2.3 16v Supertech Inconel Exhaust Valve Kit (Turbo Use)  Interior :350 lbs/ft Torque was also

:350 lbs/ft Torque was also down compared to Gen 3

Sharper throttle response

On the track the Quaife ATB cuts lap times dramatically and improves standing quarter performance

Precision Hi-Tensile Steel Alloy

Ford Duratec 2.0 & 2.3 16v Supertech Inconel Exhaust Valve Kit (Turbo Use)  Interior :350 lbs/ft Torque was alsoMade as a one piece forged valve for higher strength and reliability, Supertech use mostly EV8 (21 4N) for Intake and Exhaust valves but there are other alloys that we use along with different heat treatments to manufacture valves for different applications. Black Nitriding: This is a hardening treatment that even though it is not widely used as the chrome coating, it has several benefits and is becoming very popular, mainly for European and Japanese