Stand out from the crowd and show your love for the 2nd amendment with the Sinister Diesel AR-15 Style Exhaust Tip. Designed to look like the quad-rail handguard on a real AR-15, a rifle that’s been used and respected by military and police officers for some time, you can show your interest in this popular firearm. Even better, it works on any diesel truck exhaust system that has a 4 or 5-inch inlet, while providing a more intimidating 5 or 6-inch outlet. Stainless steel construction and powder coating helps ensure durability, while the dual wall design sheds heat efficiently. Installation is a breeze, requiring only basic hand tools and a few minutes of your time.