Red Rooster Performance Rumbler ACE Exhaust for Royal Enfield Classic Reborn 350cc / Meteor 350, BS6, Black Matte Finish is carefully designed and extensively tested for providing your bike free-flow exhaust and gains in performance. Made with SS304 – which is the highest grade of commercially available stainless steel is packed with higher thermal resistance ceramic wool than glass wool. Red Rooster Performance Exhaust also comes with lifetime warranty on build quality.