So I got a b18b1 motor that I will be swapping into a 93 civic hatch, I was wondering if I can retain the stock exhaust setup and reuse it after I plant the new ls motor in. Would it have different flanges at the end of the downpipe or is it the exact fit?

 

depends what header your runing

 

flanges might not be the problem. Length is what I would worry about

 

well it would be a full b18b1 motor and everything on it, so no aftermarket headers and just the oe b18b exhaust manifold.

 

What kind of Civic the factory exhaust are not all the same.

my $0.02 just get a new exhaust

 

Should work but I would say just get a new exhaust.

 

i swapped a b20z into my 93 CX HB, stock b20 and stock LS manifold fit to the CX Exhaust, no not the best setup but it fit to drive around.

but as asked, it will fit