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Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories.
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WALKER® EXHAUST SYSTEMS: Cooling System
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WALKER® EXHAUST SYSTEMS: Cooling System
Internal cooling system leaks can destroy a catalytic converter.
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  • An internal leak in the cooling system would allow coolant to enter the exhaust system and poison the catalytic converter.
  • Perform a leak-down test to make sure the cooling system holds system pressure (check pressure cap for exact pressure) for 15 minutes.
  • If the cooling system is not maintained properly, it may build up sludge, which may reduce heat transfer from the combustion chambers, increasing NOx emissions.
WALKER® EXHAUST SYSTEMS: Cooling System