Akrapovic Kawasaki Z900 17-19 Optional Header (Stainless Steel) - E-K9R2The performance of the Slip On Line exhausts can be further enhanced with the addition of the optional stainless steel header. When this beautifully finished header is added to any Slip On Line exhaust for the Z900, it turns the muffler into a complete racing system and increases power to even greater levels of enjoyment. The addition of the header will also improve the sound of the exhaust, giving it a crisper racing tone. Optional headers do not fit