Patent ID: 7412824

Claim:
In an exhaust system for a diesel engine including a series of pairs of upwardly extending exhaust port legs having upper outlet ends for delivering exhaust into an overhead exhaust manifold extending substantially horizontally over said diesel engine, said overhead exhaust manifold having a longitudinal interior passage and a longitudinally extending outer wall surrounding said interior passage, the improvement comprising: a plurality of catalytic converter elements removably insertable through insert openings in said longitudinally extending outer wall into said overhead exhaust manifold such that said catalytic converter elements are positioned over said upper outlet ends of said exhaust port legs; said insert openings being in opposing pairs on opposite sides of said longitudinally extending outer wall; said catalytic converter elements being removably insertable in said overhead exhaust manifold through said insert openings in opposing pairs such that each of said opposing pairs of said catalytic converter elements forms a lateral upright V arrangement in said longitudinal interior passage; and each of said catalytic converter elements comprising a diesel oxidation catalyst on a substrate comprising a corrugated metal foil.