This will fit your 03 engine
although Porsche Motorsports had nothing to do with the "double canister" AOS, for some reason someone tagged it "Motorsports"? and it stuck. This AOS was released in the UK but not in the states as a fix (notice the UK pricing?)
I highly recommend it
DO NOT run your car low on oil like some of the other sites have suggested... AND always always *qualify* who is passing out the info
B