The exhaust system may have {HEAD ~ a diffuser} configured to receive exhaust from {TAIL ~ an engine} 
The exhaust system may have { HEAD ~ a diffuser } configured to receive exhaust from { TAIL ~ an engine }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL