As for the RSB, search TL RSB and you will get the part numbers and everything. The whole setup can be had for under $45 shipped. Thats' what I got it for from Curry Acura anyway. Easy, cheap mod that makes HUGE difference.
Does the RSB for the TL come with endlinks? I know that considering my car is 9 years old, the old endlinks will probably be destroyed the moment I try to take it off of the car. I know the regular TL one is 20mm if you get the manual trans one. The auto I believe is 19mm. I would get the Type-S one but it's too expensive. Just wondering, how big is the stock one? 16mm or 17mm?