Originally Posted by saphro
so, how do you like the Perrin rear sway bar? i'm thinking about the 19mm but that's what it is stock for the WRX anyways. so maybe i should just go with the stock WRX one, what do you think?
Stock WRX rears are 20.
They'll make you car very neutral with 22mm front sway.
Slotted rotors have not shown much of a street advantage, but on a track (not autox) it has shown to have some advantages.
Cryotreated flat rotors are pretty good though.