The Patriot skull Exhaust is the complete opposite of what Gibson has normally done. Sonically we bring your Ford F - 150 a sound that's more aggressive, powerful, and brings your engine to LIFE. Aesthetically, the Patriot Skull is edgy, fresh, and has an attitude you can't overlook. The Huge 6 - inch Black Cerakote colored Exhaust Tip gives it a look that embodies a lifestyle on its own. We're certain with the addition of our new Stainless Steel 4 - inch Patriot Skull series exhaust, folks will hear you coming from behind and stare as you pass them. Proudly Made in the USA. Limited Lifetime Warranty.