This is the Spark KTM 890/790 Duke Double Grid-O Semi-Full Exhaust System. Spark has attentively worked on several aspects to offer a unique product to enhance the agility and power of the Austrian twin-cylinder so fast and precise through curves and also to meet customers’ needs in terms of design and style. The extreme look strikes at first sight: Spark stands out by displaying a high-mounting double exhaust with right side and left side Grid-O silencers (size 215mm length). The Grid-O full titanium silencers are the result of Spark R&D’s endless and meticulous work that has been directly carried out on WSBK and Moto2 World Championship race tracks. Special materials such as titanium, state-of-the-art technologies such as 3D laser cutting for production and TIG welding make Grid-O exhaust a veritable concentrate of technology in just 600 grams for each silencer. Sound is deep and aggressive thanks to the removable dB killer. Spark exhaust solution is characterized by the uniqueness of its look enhancing the Duke’s racing spirit. The Grid-O slip-on connects to the catalyzed original collector by stainless steel pipes. Diameters have been studied and tested so as to increase performance of about 2 hp compared to the standard exhaust. Handcrafted in Italy, Approximately 3.0kg, Dyno Tested for maximum horsepower increase over stock, 96 db. Non-Homologated Racing Version for Maximum Performance.
