so then, where do you look to start reducing weight...or mass?
Seats-front and rear?
Rear seats out (well they weight just 4-5kg), rear safety belts out (2kg), lighter front seats (can save up to 30kg if you have el. seats), loose the spare wheel (if you have one - some 15kg).
Then more complicated stuff... (and good because it's all in front!)
On a V6, lighter flywheel (8kg vs 15 kg dualmass, just for newer models), precats changed for normal manifolds (10kg off), radiator fans are heavy as hell (change for newer more efficient with smaller motor - some 2kg off)
And ofcourse the most important stuff for better dynamics. Lighter wheels (teledials weight 11kg+ , OZ superleggera 7,5kg - that's 15kg lighter unsprung mass!!!)
You can go hardcore then:
Aircon all out (some 15kg)
insulation under the carpet
driving with half full tank max
Some 50kg can be removed from a V6 and still have her usable with all the comfort.
I dont know about TS, but it's a little lighter in the start, and some things can be done like on the V6, so 30 - 40kg off no problem