Yes I saw that on their website, if one goes in & passes on 95 dbs that is fine BUT if you fail your muffler must be 92 dbs to pass!!!!! again. To recap I failed at a 97 dbs then woolf mufflers installed a resonator & on their cert db reading is 93.8 which my car failed again, the manager of the VNTZ got invovled & after some heated discussion between my wife & the boys in their blue overalls I have a warrant. Looks like I'll have to invest in a new silent muffler in six months!!!!!