lol, you would,nt say that if you had read his blog on msc TW http://www.micra.org.uk/showthread.php?p=407390&page=6#post407390
the mani,s are,nt that bad imo, and the primary cat is only 1/2 the length of the coilpack CG,s (with bigger/more open pores too)
its the peashooter downpipe that is the restriction imo (it drops from 40mm at the cat exit down to 35mm then drops again before the 2nd cat to 33mm)
coilpack mani on right