connor66 Posted July 30, 2006 Share Posted July 30, 2006 Guys Wondering if anyone is running a double decat pipe (single pipe) to replace both cats on a j-spec TT. If so, do you run a restrictor ring at the rear end of the pipe where the second cat used to be? Just curious as to the 'downstream' positioning of the restrictor ring versus the 'upstream' placement if 2 separate decat pipes were used Cheers Gary Link to comment Share on other sites More sharing options...
heckler Posted July 30, 2006 Share Posted July 30, 2006 doesnt make any difference, mine was between the last decat, and exhaust for ease of access Link to comment Share on other sites More sharing options...
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