My WRX came with aftermarket 18" wheels fitted and was wondering what tyre pessures i should be using? Or what pressures any of you guys with 18s are using/would recommend?

I put 32 all round on classic with 18 but I think front and rears do hav a different pressure to be right.

I just put 35psi in mine all round :) Not sure if its right but works for me.

Subaru specified for my 18's

 

normal load

Fr 33 Rr 28

 

max load

Fr 35 Rr 35

I've no idea what mine are at the mo the monkeys at Kwikfit did it and supposedly used "Nitrogen".

 

Although I expect with thier system at least some Air will have got into it negating the whole point of using Nitrogen.

That's what I'm meant to have in mine Nitrogen. Long story but 3rd of Jan failed MOT on all four tyres, so had all four done laser alignment. And as a good will they said they will put it in lol