actually it reduce engine bay temp because most cf hood got vent hole on it already..u got the same effect if u cut vent hole on stock hood alsoI Google before, and it state CF bonnet can reduce engine bay temp, I not sure about it, hope someone could advice.
Currently my bonnet is CF, but I prefer original more.
Because of that fact, I still stay with CF atm.
Btw, improve petrol consumption I meant, because lazy to type.