Guys i need help asap. I have a 2002 saab 9-5 aero that needs a new engine. So i just bought a new 2001 saab 9-5 aero. Will this engine work? I really hope it does. It took me over a year to get this for a good price. Both are automatic. Except i know 2001 aero has 230 horsepowers and 2002 aero has 250. Thanks.