I'm sick of loud mufflers so I want to put a factory muffler back on. I have a b16 in an 89 crx with 2.25 pipe. I figured I would go with iether a 99-00 civic si or 92 gsr muffler since those cars have the same engine and should flow better than the crx oem. First of all, does anyone know the inlet sizes of these. I dont want to go smaller than 2". Also does anyone know the dimensions of the civic muffler. It might be too big to fit. Last, does anyone have any other recomindations for a truley quiet muffler on a b16 crx. Thanks