Stock bumpers, horns, a/c, heater, blower, and air ducts. I still have the factory sound deadening, full interior, radio, speakers, 2nd gen leather rx-7 seats, factory battery, and really big sway bars. My z was an early 260z so it was closer to the 240z except different tail lights. Oh I also have a fuel cell but that only saved 5-10lbs at max. I thought about stripping it just for fun but I like to know what the car runs as is. I think I could get another 100lbs if I removed all above.