Mass air flow.
 

I've had the engine mangement light come because the air mass flow sensor was reading out of range. It's now reset but i need to buy a replacement subaru want £292 my car is an 03 wrx sti. If it was a classic it would only cost around £80. Can anyone recommend a supplier? subaru part number 22680aa310.

sounds like subaru are trying to sell you the whole pipe and not just the mass air flow cartridge,i believe they are available for around £80.
i seem to remember a previous thread taht mentioned bob rawl sells them for about that price,sure i will be corrected if i am wrong though

^^^^

correct, just swapped the one in my 05 wrx..;)