Si_s Supe Posted August 3, 2011 Share Posted August 3, 2011 I have a 3" cat back fitted, have a 3" 2nd Decat ready and waiting and was on the hunt for a 3" 1st Decat. However, I've just bought a brand new Megan racing 3" combined 1st & 2nd Decat. Normally the restrictor ring would sit between the 1st & 2nd decats, but in this situation, is it OK to fit it further back between the Decat and cat back? Link to comment Share on other sites More sharing options...
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