bigger sway bar in the back... really helpfull ???

I got a 21mm in the back right now .. a friend of mine wants to swap his 25mm solid bar for mine .. would this REALLY help me 60' times ?! i'll be running 28" slicks, full HAL suspension on an M6

reason i ask ... i have recently found a great interest in Auto-x .. and want to keep a well balanced compromise .. and i think a 25mm is gonna give me too much oversteer goin around those pylons :D

Your right. more oversteer with the 25mm bar. I did a 21mm bar and I've got just a touch more oversteer than I like. I'm thinking about trying the new Nitto's 555 RII tire on all four corners. It's a compromise betwteen low 60ft's and handling.

I love having My 25mm on the back with a stock front bar. QA1 shocks make it to use this combo for drag racing and Auto-xing.

I have the new 555R-IIs and LOVE THEM!