The air volume of the respective second exhaust gas turbocharger of the first and the second sets is greater than {TAIL ~ the air volume} of the first exhaust gas turbocharger of {HEAD ~ the first and second sets} 
The air volume of the respective second exhaust gas turbocharger of the first and the second sets is greater than { TAIL ~ the air volume } of the first exhaust gas turbocharger of { HEAD ~ the first and second sets }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD