Hey def. look at Maximum Motorsports
Maximum Motorsports :: The Leader In Mustang Performance Suspension for some quality reliable suspension. I love my set up. Oh and what kind of HIDs are you looking at from american muscle? Are the Dual Beam or single? Check out Stang Mods @
http://www.stangmods.com/ You can choose from full set ups, fog lights, dual/single beams, different temp. colors of the bulbs.