InfinitiPartsDeal.com offers the wholesale prices for genuine 1997 Infiniti QX4 parts. Parts like Exhaust Tube & Muffler are shipped directly from authorized Infiniti dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 3.3L, 6 Cyl 3.5L. Grade/Trim: LE.