1997 4dr stock cat back lx vs ex
 

Quick simple question, I have been looking all over the Internet for years for this answer and have yet to find the answer. Does a 4dr ex exhaust fit on a 4dr lx?

Thank you ahead of time.

Yeah exhaust is the same, as long as they are both 4dr. Header is different for the EX though.

So if I get from the intermediate pipe to the muffler from an EX, it will bolt right on and I will have the nice dual tip exhaust on my LX?

the header connects directly to the engine so the rest should fit

Catback should fit properly, ahead of that, maybe, maybe not. Definitely worth upgrading the stock exhaust manifold on the LX to a header. Doubt the exhaust itself will give you any gains.