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New product!!! NISformance polyurethane Front and Rear engine mount inserts. We are excited to offer a high quality, Performance polyurethane mount insert for the 2002-2003 Maxima, 2002-2006 Altima (3.5 v6) and 2004-2008 Maxima. These are the best mount inserts available on the market! Made from 70A hardness, high performance polyurethane. This offers the perfect combination of support without any of the harshness that comes with a Delrin or Solid mount insert. These inserts are perfect for street driven vehicles as well as racecars or track oriented setups. Our inserts feature a two piece design with a metal sleeve for easy install. Why Polyurethane?Polyurethane is available with many different hardnesses to fit a specific need and application. Our 70A polyurethane mount inserts offer the perfect amount of support without the harsh vibrations, and rattles that accompany Delrin or Solid inserts.