Parts & Accessories Spare parts I am offering a cat-back for Sierra, Silverado, Yukon, and Tahoe from models 2007-2014. It fits. The "Bolt" brand is known for its beautiful sound, especially after 3000 RPM. It comes with its electronic device and remote, and it works perfectly. However, when the valve is closed, there is a slight sound coming from the valve. It closes 100% and opens excellently, but there is a slight sound. Selling to the highest bidder. DM me. You are welcome.