What is the largest tire that can be put on a 2006 Toyota matrix?

The largest tire size that can typically be fitted on a 2006 Toyota Matrix without modifications is around 215/50R17 for the stock 17-inch wheels. If you are using the standard 16-inch wheels, the largest recommended size is usually 205/55R16. Always consider factors like wheel width, suspension, and potential rubbing issues when choosing larger tires. It's best to consult with a tire professional for precise recommendations based on your setup.