Exhaust System
Page 6A-28 90-863758060 AUGUST 2006
• Improperly sized or incorrectly installed exhaust system components.
• Leaking exhaust elbows or risers (i.e. loose screws, damaged gasket).
• Improperly designed collector or Y‑pipe. See Exhaust System Design .
• Exhaust system causing a tuning effect. See Exhaust Resonators.
• Improperly functioning or missing water shutters or flappers.
• Muffler not draining.
• Engine damage.
• Poor engine running condition.
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