Exhaust Manifold

Where or how can I find out if the exhaust manifold on the 1999 Hyundai Elantra is the same as the 1997? I own a '97, and have a NOS '99 manifold available as a replacement?

Thanks in advance.

I found out that the only manifolds that are interchangable are '96, '97 and early '98. I found one at a parts shop from a '97 that only had 2000 mi on it for $75. I installed it and it works great!