anyone know the stock in and out for the muffler for a 2011 silverado with a 5.3L?

hocman22 · by **hocman22** [OP] » Feb 05 2012, 2:46am

hocman22 · by **hocman22** [OP] » Feb 05 2012, 4:14am

also does putting a new custom exhaust void warranty?

2011 Silverado extended cab long bed Exhaust

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