This Borla Performance Pro XS Series Exhaust Muffler has single 2-1/4 inch center inlet. single 2-1/4 inch center outlet. It is made of stainless steel and comes in oval case.

Attention California Residents (Prop 65):
This product can expose you to chemicals Chromium (hexavalent compounds), which is (are) known to the State of California to cause birth defects or other reproductive harm.