AKRAPOVIC EVOLUTION LINE S-Y4MET17-FDHLTA

AKRAPOVIC EVOLUTION LINE S-Y4MET17-FDHLTA

The close collaboration between Akrapovič's Racing and R&D departments has resulted in an exhaust system virtually identical to the specifications of the one that will be used by the Monster Energy Yamaha Factory MXGP team in the 2023 Motocross World Championship season.

Yamaha YZ 450 F 2026

The custom design adapts to the motorcycle's limited space and is the largest it allows.

This allows for greater sound insulation to mitigate environmental impact, while facilitating better exhaust gas flow from the combustion chamber with minimal restrictions.

Made entirely from high-quality, lightweight titanium alloys, this system offers a weight saving of 20.4% (0.9 kg) compared to the stock exhaust. The varying thicknesses of the sections ensure perfect protection and reduce overall weight, allowing the added strength created by the design to provide greater durability under the most demanding conditions.

It offers improved response across the entire rev range, with an increase in power and torque of 1.8 kW (2.4 hp) at 10,600 rpm on the internal dynamometer and 1.5 Nm at 10,500 rpm in consecutive tests, compared to a stock exhaust system.

A new profiled surface, which contributes to a deep and full sound, and an integrated resonance chamber for optimal performance, in keeping with the sound of an Akrapovič exhaust, are designed to ensure that this system meets FIM competition noise limits. A special technique was used to imprint the logo on the surface: it's not a sticker or engraving, but a new way of applying it. Developed exclusively for use on closed racing circuits, it's easy to install, ready to use, and requires no reprogramming.

This product does not meet emissions requirements for road or highway use.