Frontpipe to Turbo Elbow/Catalytic Converter Gasket - Mitsubishi Lancer Evolution 10 X CZ4A Gasket to catalytic converter Difference is the later gasket is dual layer pressed steel and the earlier one is a composite type with fire ring. Every Evo 10 was fitted with the later gasket BUT nothing to stop you fitting the earlier EVO 7 one and saving the price of a pint. The better gasket is the multi layer BUT it's more expensive. Exploded Diagram HERE Mitsubishi Part Number MB687004 up to 01/2004 MR529714 EVO 8 9 10 01/2004 onwards
Exhaust Manifold Gasket - Mitsubishi Lancer Evolution 10 X CZ4A Fits between exhaust manifold and cylinder head. Exploded Diagram HERE Mitsubishi Part Number 1555A417
Frontpipe to Turbo Elbow Gasket - Mitsubishi Lancer Evolution 10 X CZ4A Sealing ring between exhaust front pipe and bottom part of turbo elbow Exploded Diagram HERE Mitsubishi Part Number MR450703