ok ive posted about 10 times on hondatech and no one knows what i should do, i thought id try in "tech". i have a 95 integra LS and i put a 97 jdm b18c Type r motor in my car.

So i have a tanbe racing medallion exhaust on the car now, but its for a gsr motor, and i cant bolt the bottom part of the header (a-pipe) or (downpipe) to the gsr cat. because from what ive seen a ls,gs,gsr exhaust is 60mm. and i guess all jdm exhaust are 63mm. So what do i do, where can i get a cat that will bolt to the type r header(63mm) then i need 63mm cat back exhaust. PLEASE some one help me ive been with an exhaust for months now cuz i cant figure out what to do.

 

hm.. muffler shop? custom pipe?