I was referred to NBM by a car repair agency. My vehicle was making a rapping noise when under load. The initial thought was that it was a rod knock, but the sound appeared to be coming from the rear of the car. The existing exhaust system was very loud, so I opted to have the muffler replaced. The work was done quickly at a very fair price. The result was a quiet ride and the rapping sound was gone. The staff and the muffler guy were all courteous and professional. I was deeply pleased with my experience. I will be using NBM for future work and highly recommend them to folks wanting superior service.