Hi guys. Is there a way to know for sure what gen my 2017 expi is? Its manufacture date is late in the year (Sept) and I'm trying to determine if I really need a catch can. I understand their function, but do not know if my particular engine has the direct injection or back to the dual or is it manifold injection? OR, does it really make a difference? Seems a worthwhile exercise to not be reinjecting all that crankcase blowby in any case.