Can I install STI ver 5 engine into my STI Type R Ver 4 car, do I have to change any bit and bobs on the car?

 

What have you done to your Version IV engine?

Have you also got a Version V ECU. Seeing as there is so much talk about this ECU (being a hard nut to crack), i suspect you'd need one to make the most of the Phase II boxer engine.

I believe there are a few other cosmetic changes from IV to V but quite what they are im unsure.

NeilR