Just looking through my Sparco cataloge, the lightest seat they make is the "Rev C" at
10 lbs, The heaviest model is the Sprint seat at 17 lbs. I assume that is seat only, and not mounts. I'll bet the Sparco mounts are lighter or equal. Do this and you will have removed 107lbs (assuming 127 for the factory seats) and get a much more supportive seat in the turns. Remove the insulation, replace trim with Carbon Fiber, get rid of radio/speakers, A/C, back seat, and you will have shed a lot of weight from your top heavy Xi. Just modify the supsension for a cheaper and less hassle free way of improving your car. Get some SSR Competition wheels too
