V6 2.6L(89 RS) to V6 3.0L(90 RS) Engine swap

Hey people, Im thinking about swapping the 3.0 i have in my 90 RS to the 2.6 i have in my 89 RS.

I was wondering, can I swap these motors and there be no problems? Or will I need to change anything (computer, sensors, etc.?)?

To answer anyone that might be thinking why am I downgrading to a 2.6L its easy. The 3.0 has 170k+ miles on it while the 2.6L has about 20k on it.

Thank you for any help given.

Oh and does anyone know where I can get good high performance Headers for a V6?

you don't have a 2.6, its a 2.8, and its not a 3.0, its a 3.1
But besides that, its a straight swap.

Yea i fudged up on the numbers. Thanks for the Help!!!!