Fitment Information Nissan 350Z (2003, 2004, 2005, 2006, 2007, 2008) Z33 Infiniti G35 Sedan RWD (2003, 2004, 2005, 2006) Infiniti G35 Coupe RWD (2003, 2004, 2005, 2006, 2007) Specs & Features Lowers 1.25" Front and 1.25" Rear Spring Rates: 384 lb front and 328 lb rear Includes all 4 lowering springs Works with factory shocks or aftermarket shocks that fit stock springs Product Description Looking for a cheap way to lowering your car? Manzo lowering springs (also known as M2 Lowering Springs) are a great way to lower your car with an aggressive drop without paying a premium price.  Manzo has developed their lowering springs to provide a great balance between handling, performance and daily drivability. Manzo Lowering Springs Feature: Aggressive lowering Performance spring rates Comfortable ride for daily driving Works on factory or factory style shocks and struts Direct replacement for your stock springs Comes as a complete set of 4 springs Redline360 is an authorized Manzo dealer.  Buying from Redline360 gives you full product support from Manzo.