Fitment Information Pontiac G8 (2008, 2009, 2010) Specs & Features Lowers 1.4" Front and 1.3" Rear Includes all 4 lowering springs Works with factory shocks or aftermarket shocks that fit stock springs Product Description H&R Sport Springs offer superb ride quality and are H&R's number one selling product.  These lowering springs offer some of the best ride characteristics of any lowering spring and offer enhanced handling while giving your car just the right amount of lowering to close the fender gap.  H&R Sport lowering springs lower the vehicle center of gravity and reduce body roll for incredible handling improvements.  H&R Sport springs are progressive rate and work fantastic with aftermarket, factory or performance shocks.  On older vehicles we do recommend to upgrade the shocks at the same time. Includes all 4 springs for a complete setup.