Exhaust system:
1 - exhaust manifold; 2 - protective cover; 3, 5 - gaskets; 4 — a reception pipe of mufflers; 6 — an arm of fastening of a receiving pipe; 7 - additional muffler; 8 - main muffler; 9 - nozzle; 10 - brackets and silencer suspension cushions (until May 1977); 11 - brackets and silencer suspension cushions (from May 1977).