A heat exchanger member contoured to fit along one side of an exhaust pipe is retained in {HEAD ~ place} on {TAIL ~ the exhaust pipe} by clamps 
on
A heat exchanger member contoured to fit along one side of an exhaust pipe is retained in { HEAD ~ place } on { TAIL ~ the exhaust pipe } by clamps
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH