I am now editing this review I originally gave them 5 stars. When I brought him more business he barely cared. Then when I brought my husbands car he charged first for a diagnostic $ 75 then $ 150 instalation when we returned with the part he wanted us to get. Then when we left he said oh the light may go back on again it will need to be reset. Got home it went off, husband reset the light., next day all same symptoms of problem. Finally paid more at pep boys that explained he left all the hoses off on the part that he claimed he reconnected. PROS — cheap Cons — Multiple time brought in for service, ended up paying Quality Auto three times as much then had to pay Pep Boys do diagnostic again and fix. A $ 150 repair ended up costing $ 600 owner comes across nice but truth is ., he does not care.