Spark Exhaust Technology Kawasaki Ninja 400 Titanium "Konix" Full Exhaust System. This Ninja 400 full exhaust system has a titanium silencer with a stainless mid-pipe and racing header. Handcrafted in Italy, Approximately 5 lbs, 11 oz., Dyno Tested for maximum horsepower increase over stock, 108 db. Non-Homologated Racing Version for Maximum Performance.