They are all 115bhp

They do respond well with a magnex exhaust and a pipercross induction kit as i know of one that made 140bhp on the rollers and thats not a bullshitter

even with a chip it wouldnt make 165bhp as you will gain 10-12 bhp at the most with a chip

Unless its got the lot and its had cams etc but thats a lot of money for little gains