One problem related to manifold/header/muffler/tail pipe has been reported for the 2006 Honda Odyssey. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Honda Odyssey based on all problems reported for the 2006 Odyssey.
I noticed an oil leak on the vehicle. When taken to the mechanic he found that the spool valve is leaking. The Honda dealer informed us that there are no replacement parts available. The oil is leaking on the exhaust manifold and is a very possible fire hazard. This is a family vehicle and this issue is a very serious one.