Fitment Information Hyundai Sonata (2011-2012-2013)  Specs & Features Lowers 1.0" Front and 1.0" Rear Spring Rates: 280 lb front and 230 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.