Aslam u Alikum. mere pass duet 1999 hay men uska engine change kerwaya hay aik mah tak gari bohat fit chlti rhi lakin phr usi trah engine vibration shoro hogai, rpm set nhi ho rhe hay, mounting bhi new dalwai lakin still usi trah. Jab gari ke acceleration low hoti ha to bhari se awz ati ha ese jese silencer khrab ho lakin wo bhi ok hay. I think ke mechanic mera farig hay mujeh acha mechanic suggest karo Lahore me jo esi gario ko sai trah smjhta ho please help. wese to her mechanic gari pakr leta hay lakin use kam nhi ata or aik chez sai kerte dosri khrab ker deta hay