Wow they are some serious haters here about cutting weight on the x , who would have though. Well there's a few sensible things you can do thats cool like carbon fiber hood by VIS or Carbon creation, racing seat like recaros or something, swap the steering wheel with a light weight racing one like momo, light weight wheels 18 inch like gram lights, custom fabrication carbon fiber door and body panels or aviation grade light weight aluminum doors and body panels ,custom carbon fiber driveshaft, custom acrylic or pixiglass windows. custom titanium exhaust and light weight rear brake drum hats. Then there is what I don't recommend you do unless you are a hardcore racer, this is a remove list: ac, power steering, windshield water tank, all interior plastics from floor to dash and door side panels, carpets, sun visor,passenger seat, rear seats, rear hidden compartment plastics and cover lid, interior lights, stereo and speakers, change tire kit and spare tire. the bed little compartment lids, the plastic top on the bed trim. there might be more but i cant recall at the moment. Remember keep certain things that add weight but help more in areas of racing like the body kit for aerodynamics, the keep list, bodykit, oil cooler, xbrace supention and anything that adds power.