For installation, contact ( Phone number appears when clicking the contact button ) ✅ For Sierra and F150 - We have a catback from after the Y and an electronic muffler with a remote, single exit like the agency or a small dual exhaust. - With a golden warranty, meaning we install it and test your car. If you don't like it, we remove it (testing and inspection inside the garage). - If you open the muffler, you get a 🎵 V8 sound without being loud, and if you close it, you get a quiet sound close to the agency. - From after the Y, no need to turn on lights, no programming, or anything else. It fits on agency bolts without cutting or welding. - Price: 2645 and installation is free