When I got my engine the downpipes where cut. I did use the TL headers and just bolted the accord downpipe. Soon down the line I will get a better headers and exhuast. But to answer your question, YES accord downpipe, MAYBE even headers (the j32 is basically a j30 stroked) I even used accord axles for now. I work on my car slowly so that was for testing purposes... so far so good. Since you are you going manual, I heard and read the rear header has a little bend for the mount or shifter cables? I forget which one.
GOOD LUCK cant wait to see yours with the 6speed
GOOD LUCK cant wait to see yours with the 6speed