Diamond Power Piston Rings works with Nissan Altima Frontier Sentra, Suzuki Equator 2.5L 2 Year Warranty (This product must be installed by a certified professional mechanic) Same day shipping when purchased before 3pm EST Our products are tested and meet or exceed OEM performance requirements Fits 02-09 Fits Nissan Altima Frontier Suzuki Equator 2.5L Piston Rings are made with the best quality materials, all rings are chrome