Just wonering what exactly they do and the benefits from them

 

Bigger primaries and secondaries loop (VTEC killed so no VTEC Loop)= more duration and lift at low rpm ranges , too much intake and exhaust doesn't mean more power but you will see big jump in hp after 4000-4500rpm.

 

It's a cam with a single profile, rather than the dual profiles the normal VTEC cams have. Basically turns a VTEC engine into a regular one. (Although engine control functions would need to be modified accordingly, of course.) Why do they exist, you ask? I'm not sure, but they seem to be popular in Japan for race setups.

 

less rotating weight and less flutuation in oil pressure.

when you're racing you never need the low rpm cam profile anyway.