Arrow 71874AKN Race-Tech Dark Aluminium Slip-On Muffler w/Carbon End Cap for Kawasaki Z 400 19-20/Ninja 400 08-20Product Descriptions Arrow's 71874AKN Race Tech Slip on Exhaust, Aluminum Dark with Carbon End Cap is made specifically for Kawasaki Z400 (2019 current). Kawasaki Ninja 400 Z400 2018 19 Homologated. Aluminium Dark Race Tech Silencer With Welded Link Pipe And Carbon End Cap Race Tech exhaust range was the first series of silencers designed with the new diamond shaped section. This design replaced (quite completely, but not at all) in the past years the