Just bought a wrx 2ltr turbo 121 k on the clock and i dont think its had the cam belt changed.
Do i need to do the belt and the pulley's
or just the belt.

 

I would do the belt and tensioners ...... I don't think the pulleys would need replacing??

Pete

 

Had a cambelt service on my bugeye yesterday at 48,000 and the tensioner's oil seal had failed and was leaking (sic - dealer did it under extended warranty ). So while it's in pieces just as well to change IMHO.