AmericanMuscle has a huge selection of some of the hardest to find and highest quality Mustang Ignition Accessories on the market for your 1999-2004 Pony. We've got ignition modules, battery terminals, battery boxes and a large number of replacement parts as well. And best of all, stock a large majority of our Mustang Ignition Accessories from brand names such as MSD, PA Performance, GMS and Accel, so you know only top-quality parts are going on your Stang. Such as Mustang Batteries and Mustang Coils & Coil Packs.