{HEAD ~ Such an approach} may substantially raise {TAIL ~ the temperature} of the exhaust aftertreatment devices in an emission control device during non warmed exhaust conditions, leading to faster catalytic light off 
substantially raise
{ HEAD ~ Such an approach } may substantially raise { TAIL ~ the temperature } of the exhaust aftertreatment devices in an emission control device during non warmed exhaust conditions , leading to faster catalytic light off
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH