Apr 25, 2009 #1 M miz Member Joined May 6, 2004 Messages 168 what size is the coupler that goes between stock intercooler and uppipe?
Apr 25, 2009 #2 J just plain john El Camino a Go-Go! Joined Feb 24, 2007 Messages 1,890 Both have a 2 1/2 inch O.D.