http://cgi.ebay.co.uk/Subaru-Impreza...item27b116f842

http://cgi.ebay.co.uk/Subaru-Impreza...item3cabbd8192

also what does a turbo timer do?

 

A turbo timer is small electronic ignition switch wich basicly keeps your engine running when u take the key out for a pre selected time (aprox 1 to 3mins)
This alows oil to be fed to the turbo to cool it after driving to avoid carbon build up and boiling the oil.

if you dont have one , (i dont) , and u drive the car fast then before switching it off, leave the engine running for at least a minute and a half to avoid this , TURBOS GET VERY HOT!!!

i always try to drive very gently for a few mins before reaching a destination

 

I could explain but cannot be asked to type that much so he is a cut & paste from Mr Wikipedia:

A turbo timer is a device designed to keep an automotive engine running for a pre-specified period of time in order to automatically execute the cool-down period required to prevent premature turbo wear and failure. After a period of driving when a turbocharger has been working hard, it is important to let the engine run at idle speed for a period of time, allowing the compressor assembly to cool from the lower gas temperatures in both the exhaust and intake tracts. At the same time the lubricating oil from the engine is able to circulate properly so the turbine won't burn the lubricating oil that would otherwise be trapped within the charger with the turbine rotating at high speed. With regard to modern automotive turbochargers, the need for a turbo timer can be eliminated by simply ensuring the car does not produce any 'boost' (during driving) for several minutes prior to the ignition being shut off. Most turbo timers are based on digital electronics.

Turbo timers can usually be disabled by an external switch, this is normally done using the handbrake switch, or using an automatic one.

 

Dont bother with a timer mate. Just drive the last mile easy, still getting plenty of air in to cool it down. Turbo timer car is just sitting still ticking over. Better off without one imo... Insurance will need to be informed and your premium will go up as you are leaving your car running and walking away from it. Anyone who knows how these work can smash window and turn them up to twenty minutes and drive off with your car, unless they are wired in to your handbrake, when handbrake is put off timer cuts engine out.