[truegearhead]

The stock exhaust is impressively heavy. I'd guess 45lbs, the eBay units are about 20 I've stripped quite of my 2.5 and can feel a difference, you can cut quite a bit of weight without sacrificing anything. I really wish you could get a Spyder style top and loose the whole mechanical top assembly. If you really want to go for it there is a lot of weight in the bumpers...but that's probably not a great idea

So far
(60lbs)Stock seats trades for GT3 flebay seats
(10lbs)Cat delete
(25lbs)Exhaust
(10lbs)automatic top motor, gearbox and mechanicals
(5lbs)insulation on firewall
~110lbs