Yup! it's a dealer installed item. It's a $4865.00 option though. But the dealer should give you the rims and tires that come stock! It's up to the dealer but like I said I got it in writing. I can scan my invoice for you to print and show your dealer if they try to pull some bull. GM told my dealer it was up to them what they do with the stock 20" rims and tires.
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