InfinitiPartsDeal.com offers the wholesale prices for genuine 2011 Infiniti M37 parts. Parts like Relay are shipped directly from authorized Infiniti dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 3.7L, 8 Cyl 5.6L. Grade/Trim: Base, Premitec, Premium, Premium Touring Tech, SportPre, SportTec.