One problem related to manifold/header/muffler/tail pipe has been reported for the 2001 Lexus GS300. The most recently reported issues are listed below.
Exhaust system leaking exhaust fume into interior of car. System is leaking from exhaust flanges from the front catalytic converter to rear catalytic converter and muffler.
| Gasoline Engine problems | |
| Engine Overheat problems | |
| Manifold/header/muffler/tail Pipe problems |