S-Y9E1-EET
Evolution Line (Titanium) for

This competition-only system has been developed for the Yamaha R9 with Genuine Yamaha Technology Racing (GYTR®) electronics and GYTR® parts. The complete exhaust system uses race proven materials and utilises high-grade titanium, with different alloys specific sections to optimise its performance, weight and durability. The muffler has been coated and logo applied using a special technique for higher temperature threshold, both for increased durability under demanding racing conditions. Finished with a hand-made carbon-fibre heatshield, and included in the package is an aluminium black muffler bracket.
Identical to a system that has been installed on the 2025 WorldSSP Championship winning bike of Stefano Manzi (Pata Yamaha Ten Kate Racing). The design of this racing exhaust follows the ethos of the Akrapovič systems created for the competition Yamaha R1, R6 and R7.
Compliant with FIM WorldSSP noise limits (107 dB +3) – in tests conducted by Akrapovič engineers according to the FIM method.
System does not fit Yamaha R9 in stock configuration. THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE
RACING IS IN AKRAPOVIČ DNA
RACING PARTNERS

From the R&D department with sound engineering—and through the laboratories that manage and measure the materials and into the in-house titanium foundry and then to production, before evaluation and completion—the manufacture of an Akrapovič exhaust is an internal journey with many facets that are all completed at the company’s state-of-the-art facilities.

Using only the highest standard of materials in the production of every Akrapovič exhaust, our materials are thoroughly inspected upon arrival and assessed in the metallurgical laboratory. Though more than 35 years of experience working with titanium, stainless steel, carbon fibre, aluminium alloys, and more recently ceramics matrix composites, Akrapovič sources only the best materials to produce its high-quality exhaust systems.
Akrapovič is a manufacturer of premium exhaust systems for motorcycles and performance cars. It is renowned around the globe as an innovative company that uses advanced technology and high-quality materials in exhaust system design and manufacture. Akrapovič exhaust systems excel in improved performance, an unmistakable sound, innovative design, lightweight construction, craftsmanship, and durability. There is no mistaking an Akrapovič.


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