Only 10% stiffer than stock springs and 1.2 inch drop all around giving the car a great stance without the harsh bounce of race springs. Made in the USA 100%. A4's pictured have 19s and 20s.S4's will see closer to a 2 inch drop based on the factory suspension and increased weight. Designed to fit perfectly in A4 S4 front wheel drive and awd models from 17-18. Powder coated silver to resist the elements. 100% Made in the USA. Please see the Compatibility table above to make sure this fits your vehicle. One set of lowering springs front and rear. The item "Lowering Springs For Audi A4 S4 B9 Quattro / FWD 17 18" is in sale since Friday, August 2, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Suspension & Steering\Lower Kits & Parts". The seller is "revmotoring" and is located in Salt Lake City, Utah. This item can be shipped to United States, Canada.