A
Alex Zepeda
I have IPD bars on my 242, they're the 25mm sport bars, I don't recall
if they offer others. They are wonderful in my opinion, but they do make
the ride rather harsh. If you're not into the sports car feel, you could
look into a set of swaybars from a wrecked 240 Turbo, they're heavier
than the standard DL bars and provide a nice compromise.
IPD also sells 25/22mm bars for the 240s, and they used to sell a 28mm
front bar for the 260s.
The size of the sway bars should not change the ride much at all,
especially with the rear bar on a live axle. Your choice of tires, and
their inflation will have more of an effect on the ride.