The manifold 46 may be made from {TAIL ~ aluminum}, {HEAD ~ stainless steel}, or other appropriate materials 
The manifold 46 may be made from { TAIL ~ aluminum } , { HEAD ~ stainless steel } , or other appropriate materials
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH