Not sure which 2009 Toyota Sienna Exhaust, Mufflers & Tips are right for you? We have over 795 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Richard O from Williamsburg, VA said, "This exhaust system sounds really good with the 4.0L. I also changed the cat to a high flow design. I picked up 2.5 MPG with this change alone."
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