The QA1 Pro coil-over front kit for 2003–2011 Ford Crown Victoria applications features double-adjustable damping and a 9" spring rated at 550 lb/in to suit firmer setups. Fully threaded aluminum bodies allow ride-height and balance tuning for improved handling and stance. The kit is serviceable, rebuildable and 100% dyno tested and serialized for quality. Installation is an easy bolt-in process, and the unit is made in the USA (QA1 MD431-09550).
QA1 03-11 Ford Crown Victoria Pro Front Coil-Over System - Double Adj. - 9in x 550lbs/in - Aluminum