I have bigger piping for the exhaust on my eh2 already just need to know what downpipe i will need to do this swap. Will the stock d series bolt up? I read it wont. Im guessing a b series downpipe will work? Will it bolt to the "stock" exhaust style setup i have already?

 

Maybe if i simplify this question itll help. With a gsr swap in my eh2 eg hatch where will the b series exhaust have to end and the eg start?

 

im guessing it would have to end before the cat and eg start behind the cat???