Tires. Stock tires are really designed to ride quietly on the street. If carmakers put mud-terrains or AT's on their dealer cars, soccer mom's would probably complain that they're too loud. It would also drag down fuel economy in the EPA estimates, which are already pretty optimistic. IMHO, good tires are better than a locker, plus they give more traction on wet city streets. Next, I'd say suspension, like 2" of lift and good springs/shocks, provided you want to upgrade tires. Don't think you can't offroad with upgraded, stock-sized tires. Center of gravity is lower, giving you the edge on lateral slopes...all depends on the terrain. Remember, big tires require regearing for optimal performance, and that's $$$.

<small>[ February 24, 2003, 01:16 PM: Message edited by: James Chow ]</small>