They now raised the price to $750 with out shipping...? Cost as much as a JDM F20B dohc vtec!?if the combustion chamber doesn't get hot enough the fuel doesn't burn up completely... so i was told. and the D15B is $450 picked up i live like 50Mi. away from Hmotors so i went and picked mine up but when i bought mine it was only $435 i don't know why they raised the price... maybe demand?