The Patriot skull Exhaust is the complete opposite of what Gibson has normally done. Sonically we bring your Ford F250F350 truck 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 - in. 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 - in. Patriot Skull series exhaust, folks will hear you coming from behind and stare as you pass them. Made in the USA. Limited Lifetime Warranty.