Originally Posted by PimestiLL
this is not true i happen to work at a muffler shop i'd say to go with 2 1/4 catback welded in custom bent with a Tubemaster custom pipe bender.... i've always had great results i do ruffly 10 integra's a week...
You took that out of context...
The same size piping will not help at all, but what you are talking about is a 1/4" difference from stock piping, so of course it will make a little difference.