The exhaust system may further include a plurality of {HEAD ~ dosers} associated with the diffuser and configured to inject {TAIL ~ fuel} into the diffuser 
configured to inject
The exhaust system may further include a plurality of { HEAD ~ dosers } associated with the diffuser and configured to inject { TAIL ~ fuel } into the diffuser
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH