Akrapovic Kawasaki KX 450 / 450X 24-26 Evolution Line Exhaust System (Titanium) - S-K4MET9-FDHLTAAkrapovic KX 450F Evolution Line (Titanium) for Complete Exhaust System K4MET9 FDHLTA Constructed from lightweight titanium, this product was created through close collaboration with the Akrapovic Racing Department. This complete exhaust is 29. 8% (1. 3 kg) lighter than standard stock and features headers with an integrated resonance chamber and a debossed Akrapovic logo. New technology has been developed directly from Akrapovics involvement in