Curiosity is getting to me... How much weight could you take off an XR6t or/and F6 typhoon? what would give you the biggest weight saving? would it translate into a big performance increase, Eg: how much kilos do you need to loose before you can see a good increase. How much do the rear seats weigh? Exhaust? Engine ? This is one for thoses that know the weight of each part of the car I think ?