ellis Posted June 29, 2005 Share Posted June 29, 2005 Morning all! Need a new zorst as my baffles in the Zigen 5 are shot - think I've narrowed it down to either a HKS Hiper or an RSR. Questions: 1. anybody got either of these and are they excessively noisy? 2. Am I right in saying that the N/A has 2 cats and it is pretty easy to remove 1 of these and still pass MoT? If so, is there much performance difference or is it just noise? And which one to remove? Thanks in advance chaps. Link to comment Share on other sites More sharing options...
Pete Posted June 29, 2005 Share Posted June 29, 2005 Remove the first cat closest the manifold before the second if you're worried about emissions. I had both mine removed - see my opinions here http://www.mkivsupra.net/vbb/showthread.php?t=37357&highlight=cat Link to comment Share on other sites More sharing options...
ellis Posted June 29, 2005 Author Share Posted June 29, 2005 Cheers mate Link to comment Share on other sites More sharing options...
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