do i need to make a custom exhaust or can i just bolt up a prelude exhuast and that would work just fine..

 

You will have to go custom, they don't just bolt up. When you buy an exhaust system, you buy it for the car you have, not the car the engine came out of. On the other hand, buy the header for the car the engine came out of, not that one you have. (i.e. catback for civic, header for prelude VTEC)

 

yea you will need to go custom with an h22. I had to hack into my skunk2 cat-back when I h22 swaped. so buy a muffler and save the cash for custom work you will need anyways.