The optimum profile which draws out the maximum performance of OEM cylinder head will improve the output performance of the engine. 
By installing it on OEM engines, you can improve the output at high rotation range.
If you remove the decompression parts from the OEM camshaft and install them on a sports camshaft, you can make it into an automatic decompression structure. 

If you are to install only the camshaft on vehicles with OEM piston and OEM exhaust, you do not require FI CON2.