im going to get my themmorstat today and fit it do i need to get a gaskett an sealent to do this or is it a case of buy a blue print thermostat pop the bottom pipe of undo the to bolt puull out thermo and pop neww one in fill system bleed system cheers oh ps i hate being up this early on a sunday

 

Don't think you need sealant - did the stat come with the brown/blue/grey circular rubber sealing O-ring?

 

not sure dude i not yet pop up the road to basingstoke to get it lol

 

Make sure it does (it should do).

It's the black thing that goes around the outer edge (obviously):-

Impreza Turbo thermostat