my experience was on an M body, where until very recently, there were no options for T-bar choices, being a bent bar car (firm feel recently came out with different sized bars, but like all their stuff, they ain't cheap)....I had upgraded to poly bushings in the front, and police spec rear springs, as well as a 1.125" front and 1" rear sway bars. the KYB's handled very good with my 255/50R17 tires, but it did ride like an oxcart, any small to moderate bump was harsh, nearly tooth-filling loosening harsh. I replaced with Monroe Sensa-tracs, not the cheap monroes, and the ride was MUCH more comfortable, with no loss in handling prowess...