what's the difference between 94 up LS/RS b-pipe and GSR b-pipe...which one is longer?

 

depends on the year of the GSR. 94-99 GSR had a longer b-pipe. 00-01 GSR was the same length as 94-01 LS/RS/GS and all ITR

 

so 01 GSR is shorter than the 94-99 GSR because 00-01 GSR exhaust manifold is longer than the 94-99 GSR, but as long the LS?

I have a B20 swap in my ek hatch and previously had a 00 US type r header, gsr cat, mid-pipe and everything bolted up fine. Since i sold it for a cutom 2.25 exhaust, i want to go back stock again after getting annoy by this tin can exhaust. So i'm trying to figure what stock system in those years would bolt up to my DC ls application header and gsr cat....

 

here's a picture that will help you out:

 

thanks..got any pictures on the stock pipings on those models?

 

help this guy out