How easy and what parts are needed to fit the dccd to an 05 sti that doesnt have it?

Are any of the wires or plugs already there?

 

I thought all 05MY STi's had DCCD?

If it doesn't have DCCD you'll need the complete rear housing with diff, all the wiring anc controller, not even sure then if the rest of the car will be happy with it (VDC).

Simon

 

Any one else no.
Is it worth trying to do?

 

DCCDpro.com