ricickles 0 Posted July 20, 2009 Was looking to decat the 1.8 valver i just bought it has a stainless system from the cat back so my first thought was to just cut the cat out and replace it with a bit of pit which i would weld in. now the problem is, coming of the bottom of the manifold there is 2 pipes which go into the cat then 1 pipe come out the cat. is there anyway around this without getting a new manifold? Quote Share this post Link to post Share on other sites
aide 0 Posted July 20, 2009 1.8 16v's don't have cat convertors! if ur looking performance gains either gasflow the stock exhaust manifold and get a full stainless system, or my preference get a four branch manifold and full system. Quote Share this post Link to post Share on other sites
ricickles 0 Posted July 20, 2009 its already had a gas flowed inlet and exhause manifold aswell as a gti engineering head. So i take it the box behind the manifold is some sort of silencer then? Also where sells good manifolds for the 16v? Quote Share this post Link to post Share on other sites