2013 Peace be upon you, I have some parts for the Sierra. I have an empty Y-pipe that fits the stock manifold, no dents, and it's in good condition, priced at 200✅ for models 2007-2013. . 2 Borla Y-pipes, 500✅ fits from 2007-2018. . Spider bedliner with its brackets for sale, only missing locks, priced around 300✅. . Extra rear lift springs, 2 pieces✅ priced at 100. Empty Y-pipe and stock manifold 14-18✅✅ Cover