for xi models, no change to suspension with sport package
the only upgrade that affects performance is the wheels and tires...you get 225/45R17 tires..i think it will be BS potenza RE050 pole position run flats (summer tires)
compared to the regular ones which is 205/55R16 BS turanza EL42 run flats (all seasons)
celeron 266MHz (Covington) @ 400MHz - power without L2 cache