CTR intake cams are more aggresive and have a longer duration than the ITR intake cam. Exhaust cams are the same.

But I agree with eknine. Danny, I suggest you wait till your car is ready and drive it a bit before choosing to upgrade it. Upgrading to CTR spec isn't a simple job. You have to strip the engine and swap out the pistons. A lot of $$$ if you're not doing it yourself!

But if you wanted more power in the first place, then you definitely should have gone for the b18c.