4" * 10" * 14" performance car muffler material : Stainless Steel barrel size:4"*10"*14" offset/center id/od:2.5"/2.5" Our factory can make many size of performace muffler ,barrel size is 4"*10", inlet diameter and outlet diameter is 2.5",also we can make 3" (we can do as clients requirement);Material is Stainless Steel;our factory has got the ISO9001:2000 Quality Control System Certification;OEM ...