[Tomma]

i thought the ppp kit on an sti take the car up to 305BHP and 299lb torque from the original 265 bhp and 253lbft????

Best bet is give the owner a bell and tell them you want to go view it, ask him if he has the certificate...... if he doesn't give subaru a bell with the chassis number and they can tell you if it had the kit fitted, if you end up getting the car i think they can issue you a duplicate certificate too.....