Because I have an '00 Si shell left and the '05 Si is about 6500 grand but needs to be rebuilt. However, there's an engine which is about 20k mi in it. Why not swap into my shell and sell the ugly hatch with complete interior and airbags? I have decided to keep the Si shell (was recovered 2 days ago) and since the engine was taken build a better car after the summer. I didn't know that the engines are different, I thought well i-VTEC 2 Liter = 200hp. So basically this is not a k20?

Edit: k20a3 is worse than k20a2 why?