When used with an air intake pipe for an internal combustion engine, the device allows more horsepower and {HEAD ~ mileage} to be extracted from {TAIL ~ the engine} 
to be extracted from
When used with an air intake pipe for an internal combustion engine , the device allows more horsepower and { HEAD ~ mileage } to be extracted from { TAIL ~ the engine }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL