S-Y2MET17-FDHLTA
Evolution Line (Titanium) for




Power
+0.5 kW
at 12500 rpm
Torque
+0.5 Nm
at 12000 rpm
Weight
-0.8 kg
This product is completely constructed from lightweight, high-grade titanium alloys. Different thicknesses in various sections ensure perfect protection and reduce overall weight – for a saving of 19.7% (0.8 kg) over the standard stock exhaust – and allow the added strength created by the design to provide enhanced resilience under the most demanding conditions. Designed to fit perfectly within the limited space on the motorcycle, it has been tailored to be as large as possible within the space available. This allows increased sound silencing to mitigate the impact on the natural environment, while also facilitating improved flow for the exhaust gases from the combustion chamber with as few restrictions as possible.
Power and torque levels are increased by an extra 0.5 kW (0.7 hp) at 12,500 rpm and 0.5 Nm at 12,000 rpm, respectively, when tested on the in-house dyno in back-to-back tests against a standard stock exhaust system. Offering an increased response through the entire rev range, the Evolution Line (Titanium) has a new profiled surface, which influences the deep, full sound, and an integrated resonance chamber for optimum performance befitting the sound of an Akrapovič exhaust, all designed to meet FIM noise limits for competition.
Finished with a specially imprinted logo on the surface, there is no sticker or engraving, but a different technique to add the logo. Developed for use on closed-course competition circuits only, it is a simple plug-and-play operation to install, with no remapping needed.
For riders required to meet the new 109 dB FIM noise limitation, installing the optional V-TUV386 noise insert is mandatory.
THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.
EXPERIENCE THE SOUND
Immerse yourself in the sound of the Yamaha WR250F exhaust systems.
| Unit | Akrapovič | Max gain | |
|---|---|---|---|
| Max. power | kW | 28.5 / 12500 rpm | + 0.5 / 12500 rpm |
| HP (m) | 38.7 / 12500 rpm | + 0.7 / 12500 rpm | |
| HP (i) | 38.2 / 12500 rpm | + 0.7 / 12500 rpm | |
| Max. torque | Nm | 24.7 / 10500 rpm | + 0.5 / 12000 rpm |
| lb-ft | 18.2 / 10500 rpm | + 0.4 / 12000 rpm | |
| Weight | kg | 3.39 | - 0.8 |
| lb | 7.5 | - 1.8 | |
| % | - 19.7 | ||
| Volume | dB | 113.7 / rpm | -1.5 |
| Inst. time | min | 30 |
Akrapovič's product line includes products regulated by national and international emission regulations. Akrapovič makes every effort to provide accurate information on compliance of our products with various regulations and identify if they are for competition-use only or for general street/highway use in the regulated area. However, unless an explicit compliance label is indicated for a specific product, Akrapovič does not make any statement of compliance. It is the user's responsibility to choose an appropriate product for the intended use. As regulations change over time, please check the key on the website to verify the compliance with the current regulations..
Please make sure the product is installed in line with installation instructions and used in accordance with all local regulations, as the compliance label may otherwise not be valid.
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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