There's a 15mm Del Sol rear sway bar for sale just up the road from me, about 3 miles from where I go to school, literally for pennies. I'm seriously considering picking it up and slapping it on my Teg...but I want to know if the extra 2mm is really going to make any difference. My car has very stiff coilovers combined with the stock LS 13mm rear bar with poly bushings(which I would also get for the Del Sol bar) and spherical balljoint endlinks, and the car will already readily oversteer, especially in sudden off-throttle situations. I'm going to start autocrossing it this fall though, and every little bit will help with eliminating the dreaded understeer on the AutoX course. Anybody have any opinions?