Supertech Black Nitride Valves for VQ35DE 350Z Toyo the valve being open will

the valve being open will also the exhaust gas to flow more freely

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Supertech Black Nitride Valves for VQ35DE 350Z Toyo the valve being open willSupertech black nitride intake and exhaust valves for VQ35DE 2003 2006 350Z. These valves are available in various sizes to match your head diameter. Sold as a set of 12 or individually as needed. Please do all your research and consult your engine builder if necessary! Black nitride valves are made from one piece forged stainless steel then go through a special hardening process to lessen the friction between the valve and guide. Vehicle Fitment: