I had a Losi 22 version 1 and the reason I sold it was due to the steering binding issues. Even in a dry day I would get the servo not responding. I even bought another brand servo, and a much more expensive one that still gave me the same problems. I would find occasionally the car would just go straight on when attempting to turn a corner.
The 22 2.0 stock steering assembly seems to be the same as he version 1 but there is now a bell crank version. The Exotek alloy one is good but note it pushes the servo back a bit so not sure you will get a full size servo in there unless you mount your receiver somewhere else.
I found the slider steering thing, is the only bad part on the Losi 22 - and there is no perfect car, they all pretty much have design flaws
Simon