mikerunner Posted April 14, 2011 Share Posted April 14, 2011 what if any diference would there be fitting a 2.5 inch or a 3 inch 1st and 2nd decat? i didnt think there would be any if your reducing the boost to 1.1 for bpu thanks Quote Link to comment Share on other sites More sharing options...
Nic Posted April 15, 2011 Share Posted April 15, 2011 what if any diference would there be fitting a 2.5 inch or a 3 inch 1st and 2nd decat? i didnt think there would be any if your reducing the boost to 1.1 for bpu No difference, either way you'll need a restrictor ring to keep boost to safe level. Quote Link to comment Share on other sites More sharing options...
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