Thanks a lot guys , yes the timing belt was done 20,000 k's ago, so guessing all is good there, it does have a 3 inch TBE but the top pipe is standard and have been recommended to have it changed b4 it destroys my turbo.
Subaru's are a new learning curve for me as im used to working on my ex Nissan pulsar turbo, but am loving the grip and take off of the wrx but below 2000rpm feels very laggy nd ive heard the gearboxs cant handle to many 5000rpm clutch drops lol