EXHAUST CONNECTION GASKET SET ALUMIN-CYLINDER KIT Ø 52 H2O MHR BIG BORE Testa Rossa mod-head ALUMIN-CYLINDER KIT Ø 52 H2O MHR BIG BORE Testa Rossa mod-head ALUMIN-CYLINDER KIT Ø 52 H2O MHR BIG BORE Testa Rossa mod-head CYLINDER KIT Ø 52 MHR FLANGED MOUNT testa rossa