chris_bramley Posted August 29, 2006 Share Posted August 29, 2006 Quickie - if you have a performance exhaust and replace this cat with a straight pipe (the other is long gone), will you maintain the correct backpressure for the turbos? I know about getting it MOT'd, never fear. I just need to know if it's as simple as removing the cat... or if something needs inserting to provide backpressure. Link to comment Share on other sites More sharing options...
Steviekid Posted August 29, 2006 Share Posted August 29, 2006 You'll need a restrictor ring to avoid overboosting. Link to comment Share on other sites More sharing options...
chris_bramley Posted August 29, 2006 Author Share Posted August 29, 2006 Ooh, that rings a bell. Where does that fit? In between the new pipe and the rest of the exhaust? Or twixt the manifold and pipe? I assume it's a narrower ring of metal that, um, restricts the exhaust flow. Any idea how much they are and where to nab em? Link to comment Share on other sites More sharing options...
Matti85 Posted August 29, 2006 Share Posted August 29, 2006 Chris Wilson seems to able make you one. You can put the ring before or after, your choice Link to comment Share on other sites More sharing options...
Steviekid Posted August 29, 2006 Share Posted August 29, 2006 Any idea how much they are and where to nab em? I put mine between the second decat and my nur spec. The Chris Wilson ones are about £25. Link to comment Share on other sites More sharing options...
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