[xaeniac]

I own a '05 and '01 focus. The '05 has bigger rotors. The rotors on my '01 are warped. Can I put '05 rotors on my '01?

 

[DarkFire1986]

They're not interchangeable, unless your swapping calipers too.

www.rockauto.com has some decent prices on rotors. Might wanna check them out

Your other option would be to pm Mike at Hilbish Ford (b16sir1991) and ask him for prices on rotors.

 

[xaeniac]

My thanks to Darkfire1986 this issue is solved.

 

[UnFocusedST]

You need to change the knuckles also. The 05 uses the same knuckle as the SVT. I found that out when I did my SVT brake swap.