Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.

This Part Fits:

Year	Make	Model	Submodel
2003-2008	INFINITI	FX35	Base
2003-2007	INFINITI	G35	Base
2006-2008	INFINITI	M35	Base
2006-2007	INFINITI	M35	Sport
2005	Nissan	350Z	35th Anniversary Edition
2003-2006	Nissan	350Z	Base
2003-2006	Nissan	350Z	Enthusiast
2005-2006	Nissan	350Z	Grand Touring
2003-2005	Nissan	350Z	Performance
2003-2006	Nissan	350Z	Touring
2003-2006	Nissan	350Z	Track
2002-2008	Nissan	Altima	SE
2005-2006	Nissan	Altima	SE-R
2005-2008	Nissan	Altima	SL
2002-2003	Nissan	Maxima	GLE
2002-2003	Nissan	Maxima	GXE
2002-2008	Nissan	Maxima	SE
2004-2008	Nissan	Maxima	SL