Gibson 10-11 GMC Sierra 1500 SLE 4.8L 4in Patriot Skull Series Cat-Back Single Exhaust - StainlessThe Patriot skull Exhaust is the complete opposite of what Gibson has normally done. Sonically we bring your Chevrolet Silverado 1500 truck and GMC Sierra 1500 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 inch Black Cerakote colored Exhaust Tip gives it a look that embodies a lifestyle on its own. We're certain with