not to sure on your last post mate,but i was looking at getting a manifold for mine,being a valver GSF wabt £125 i think for the downpipe,so i was looking at some TSR manifolds,i emailed the bloke and he said i should expect between 9-15bhp,weather that was him jus trying to flog it to me i dont know,also supposed to be quite tricky to fit,
