2002 Stock H-pipe Interchangeable with 99 Cobra??

I hear that my Aftermarket Magnaflow X-pipe would fit in a 99 Cobra. Is that true? I'm guesing my stock one would then as well? IF so, are there any issues with 02 Sensors reaching or not reaching?

What other parts are interchangeable between the two cars?

(I also posted this in the 4.6L forum)