You can get a replacement part from RockAuto for about $65 and have it locally installed for under $100.
The oil filter on the 2006 Toyota Sienna is in the front, pointing toward the front under the exhaust manifold. As you look under the hood from the front, it is in the center directly under the exhaust manifold.
The 2011 Toyota Sienna has 65.0 in. of front shoulder room.
The 2006 Toyota Sienna has 63.8 in. of front shoulder room.
The 2009 Toyota Sienna has 58.4 in. of front hip room.
The 2005 Toyota Sienna has 42 in. of front head room.
The 2004 Toyota Sienna has 63.8 in. of front shoulder room.
The 2010 Toyota Sienna has 42.0 in. of front head room.
The 2003 Toyota Sienna has 58.7 in. of front hip room.
The 2014 Toyota Sienna has 58.6 in. of front hip room.
The 2006 Toyota Sienna has 42 in. of front head room.
The 2014 Toyota Sienna has 41.0 in. of front head room.
The 2009 Toyota Sienna has 63.8 in. of front shoulder room.