Tests with {HEAD ~ a silencer} according to {TAIL ~ the present invention} yielded a sound pressure level in free field vehicle noise measurement according to the abovementioned Directive 70/157 EWG of 69 dB 
according to
Tests with { HEAD ~ a silencer } according to { TAIL ~ the present invention } yielded a sound pressure level in free field vehicle noise measurement according to the abovementioned Directive 70/157 EWG of 69 dB
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH