Automotive exhaust system

An exhaust system, comprising:

• a plurality of exhaust pipes at a proximal end of the exhaust system for receiving internal combustion engine exhaust, the exhaust pipes having a combined cross-sectional area;
• a collector at a distal end of the exhaust system and having a cross-sectional area;
• a venturi disposed between and fluidly connecting the exhaust pipes and collector, wherein a cross-sectional area thereof is less than either the collector cross-sectional area or the combined exhaust pipes cross-sectional area;
• and
• at least one vane corresponding to each exhaust pipe fixed to an inner wall of the venturi.

An exhaust system, comprising:

• a plurality of exhaust pipes at a proximal end of the exhaust system for receiving internal combustion engine exhaust, the exhaust pipes having a combined cross-sectional area;
• a collector at a distal end of the exhaust system and having a cross-sectional area;
• a venturi disposed between and fluidly connecting the exhaust pipes and collector, wherein a cross-sectional area thereof is less than either the collector cross-sectional area or the combined exhaust pipes cross-sectional area;
• and
• at least one vane corresponding to each exhaust pipe fixed to an inner wall of the venturi, wherein each vane is approximately centered relative to its corresponding exhaust pipe and comprises an arced vane which matches the inner wall of the venturi and is angled relative to the adjacent inner wall of the venturi.