hahaha.. yalo, must korek another lubang in my pocket again liao.. wat to do ar.. need the perfect set up for my exhaust system ma.. 1 time pay painfully for both this item better than pay a lot of times trying to get the perfect set up using some custom made exhaust system right?? anyway, for my blacktop engine, my exhaust piping diameter is only 2 inch.. zzzzzzzzz.. cannot go le.. i'm willing to sacrifice some extra money for this APEX-i N1 and FGK set up.. but dun push the price until soooo high le.. if not, i'll end up being a begger beside the road soon.. hahaha.. still nobody said they have this items dat i wan.. really nobody out there got this 2 items that i'm looking for ka??