This exhaust made from 304 stainless steel all round and is designed to fit 1300-1600cc type 1 engines. The back box is made to fit on a Beetle years 65 onwards but will fit earlier years and other cars too. The 4 into 1 is universal to any 1300-1600cc Type 1 motor (not type 3 or 4) 

Kit comes with everything you to fit it, including 

4 into 1 stainless steel manifold 

Stainless steel single quiet pack back box

Silencer fitting kit 

Exhaust gaskets 

Exhaust clamps

This exhaust will not fit a 1200 beetle engine