The replacement cycle of the exhaust pipe should be determined by comprehensively considering factors such as the vehicle's operating environment, mileage, and material. It is generally recommended to perform a thorough inspection every 20,000 to 30,000 kilometers or every 5 to 10 years, with the specific interval adjusted based on actual conditions. If the vehicle frequently operates in muddy, high-salinity, or dusty environments, or if the exhaust pipe shows signs of rust, cracks, abnormal noises, or irregular emissions, the inspection interval should be reduced to every 5,000 to 10,000 kilometers, with earlier replacement if necessary. As a critical component linking the vehicle's interior and exterior, the exhaust pipe's condition directly impacts engine performance and emission compliance. Regular carbon deposit removal and avoiding prolonged high-speed operation can prolong its lifespan. Note that water dripping from the exhaust pipe is typically a normal byproduct of efficient combustion, but accompanying abnormal symptoms warrant immediate inspection. Replacement costs vary significantly depending on vehicle model and material; therefore, a professional assessment is recommended to establish a precise maintenance schedule.
