s14 exhaust install..pipe issues.

[devonkyle77]

so my rsr gt2 exhaust just came in yesterday and i went to put it on today.
while under the car, i notice my stock exhaust has been welded completely together.
by that, i mean the piping from the flange at the exhaust manifold is welded to the entire exhaust pipe.
it looks like where the flange should be for the exhaust to bolt on to was replaced by a piece of pipe for whatever reason...so flange is no more.
so my question is, since i am not turbo i cant just buy a downpipe.
what do i buy, because i dont believe that piping is called downpipe on a na application.
where can i buy it?
thanks in advance guys, please help, because this really sucks