For a Honda below 200hp OEM axles are preferred. Anything above 200hp (in my experience) you're going to want to upgrade. There is quite a few companies out there that make aftermarket half-shafts. The ones I've used are the Hasport axles. They have the same reliability as OEM so I highly recommend them. If you plan on doing road racing as opposed to drag OEM axles will last you even into the 300hp range. The reason high horsepower motors generally break OEM axles is because of the shock of launching the car in a drag race.