am i right in thinking i have 2 cats,, one in manifold and one in middle section, ??
so if i added aftermarket manifold without cat, and cat bypass for middle section, would it be worth while ???

 

You will only have 1 cat & thats in your downpipe (just behind the turbo).
Is it worth it, depends if your willling to put the catted dp back on for mot time. Unless you know of a friendly mot station.

 

oh rite ,, whats in the cat shaped box under it then ??, muffler or silencer of something else,, no more friendly mot stations now with the new mots,, its a shame i knew loads,, lol

 

Yeah, the resonated centre section muffler/silencer. Basically I found it just kills some of that boom you get on long motorway journeys.
Its only the much later cars that have 2 cats, one of them being in the up-pipe (before turbo)