I purchased my impreza about 6 yrs ago, with a full stainless system and no cats. Up until now it hasn't been a problem as I've had lenient mot's so to speak. Unfortunately this time round, I've got to get it done properly. Can anyone tell me what cats / pipes are required? And possibly recommend where is best to get them (price wise). With part numbers.

It's a 51 plate impreza wrx sti import 2l turbo. Engine no. EJ207.

Any help will be appreciated.

try import car parts !

If your just sticking it in for a MOT try another tester? i just had to search for a lenient one 

Cheers matt, no joy with them tho. I've booked it in for tomorrow morning. Gonna warm her up a bit on the way and take a chance. Then assuming it fails, make a decision then. He's quoted me around £200 for the cat and pipe. So with labour and mot, looking at £300! Just be nice to have a part number so I could search for it myself. 

That's not bad if you ask me!