Fitment Information Nissan Altima Sedan (2007, 2008, 2009, 2010, 2011, 2012) Nissan Altima Coupe (2008, 2009, 2010, 2011, 2012, 2013) Specs & Features Lowers 0.83" Front and 0.35" Rear Includes all 4 lowering springs Works with factory shocks or aftermarket shocks that fit stock springs Product Description Megan Racing lowering springs are designed to offer an aggressive drop while maintaining a smooth comfortable ride.  Made from high strength SAE 9254 Cold Wound steel, one of the strongest materials available, these springs have an incredibly high tensile strength that resists premature "sagging" which many lowering springs are known for.  Megan Racing springs have phosphate powder coating in a unique orange that Megan Racing is famous for. Megan Racing Lowering Springs Feature: SAE 9254 Cold Wounded Steel for Strength against premature sagging Phosphate Powder Coated in orange Maintains smooth and comfortable ride characteristics Recommended to use with performance shocks but will work with stock shocks Includes a full set of 4 springs (2 front, 2 rear) Redline360 is an authorized Megan Racing dealer and sells only genuine Megan Racing products.