GMC Sierra 2013 Sierra 2007-2013 Muffler With silencer and electronic valve, without the device Custom made by Abu Mansour in Dammam Used for 3 months, loud sound, a mix between Corsa, Borla, and old GMCs The muffler is excellent for those who want a loud sound without emptying it, and for those who have emptied it and want a loud, rough sound. Its advantage is open travel, meaning it's like you installed two exhausts. For those who want to hear the sound, I will send it. Negotiable price, contact via private message.