Full High Level De Cat Exhaust SystemFits : Kawasaki ER-6N ER650A / ER-6F EX650C 05-11 models USA Spec:- NINJA 650R EX650C 2009-2011 EX650J 2008 EX650A 2006-2007 Removes the restrictive catalytic converter / heavy OEM muffler/Silencer. Baffle / DB killer is removable. Louder with improved gas flow. No modifications required. (Re-mapping, Power comm+er) Accepts original lambda sensor (O2 sensor). Silencer mounting strap, clamp + gasket included. Header/Down pipe Material : 304 grade polished Stainless steel. Silencer Material : 304 Grade Black Painted Stainless Steel. Body Length excluding tips = 350mm Body Diameter = 84mm Silencer Code: BN35R See our Silencer Specifications Tab for length & noise levels. 2 Year Black Widow Unlimited Mileage Warranty. Model ER-6 05-11 Silencer Length 350mm Type Full Exhaust System Shape Round Brand Black Widow Exhausts Product Code BN35R