while most of us have an opinion about it (iv got no idea whats happened) theres no way any of us can make an informed judgement theres just nowhere near enough hard facts
my fk exahaust is cat back and empty till it gets to the backbox it really isnt that loud either theres a slight drone at 2k but its not bad at all souned really nice imho i had a decat too its for sale if your ntrested
the rado fuel pump is 4 bar (obd2 golfs are 3 bar iirc) i got a rado pump in mine with a 4 bar fpr and iv g9ot no probs with getting enough fuel and its running 12 psi