So my scoring would be (so far)...
Fitting: 4/5 - probably 5/5 if you have removed exhausts before! Fitting was v simple and easy. Only think I did additionally was adjust the RHS one to be closer to the car (after I fitted it and realised I could adjust that) and after starting up ensuring the clamps to the downpipes were tightened up.
Sound: 5/5 - but I am probably biased. Makes the M3W sound like a vintage static engine. Overrun causes some crackling. Healthy roar at revs. To me it doesnt seem louder than the OEM pipes, but I didnt test it.
Performance: 5/5 - came up the hill past the John Radcliffe in Oxford in 3rd. Should have been 2nd.
Issues? Yes, should have done this sooner (ie post warranty). Would have preferred a black exhaust cover, and the option of newer 4-hole mounts. Got to decide if the new air intake cover is worth it. Means I will likely need Phil Bleazey's centa upgrade sooner (a few more slivers of black rubber fell out of the bell housing when I pulled the stopper out last month).
