2008 Pontiac G8 with 19x8.5 33 Rohana Rfx5 and 245 40R19 Continental 2009 Pontiac G8 GT with 20x9 MRR Gf6 and Continental 265x40 on Lowering H&R Sport Springs For Audi S4 B8.5 YouTube G8 gt h&r drop springs YouTube Pontiac GM OEM 08 09 G8, GTP FE2 FE3 Front Suspension coil Springs. Sport Spring kits are H&Rs number one selling product. Enhance the look of your 2008 2010 Pontiac G8 with a reduced fender well gap. H&R Sport Springs lower the vehicle center of gravity and reduce body roll for better handling. The progressive spring rate design provides superb ride quality and comfort. A lower wind resistance signature will make the vehicle more streamlined and improve gas mileage. If you are only looking to improve one part of your vehicles suspension, you cannot go wrong with installing Sport Springs. Fun to drive, H&R Sport Springs are the number one upgrade for your vehicle. Lowers vehicle approximately front 1. 4" front & 1. 3" rear.