S-K4MET9-FDHLTA
Evolution Line (Titanium) for




Power
+1.9 kW
at 7500 rpm
Torque
+2.5 Nm
at 7600 rpm
Weight
-1.3 kg
Constructed from lightweight titanium, this product was created through close collaboration with the Akrapovič Racing Department. This complete exhaust is 29.8% (1.3 kg) lighter than standard stock and features headers with an integrated resonance chamber and a debossed Akrapovič logo. New technology has been developed directly from Akrapovič’s involvement in motorsports, with a special technique for imprinting the logo on the muffler outer sleeve, which is now bigger and in a white and red colour combination. This technology provides a higher temperature threshold, with greater durability and longer life for a product that will be used in the toughest conditions. There are power and torque increases of 1.9 Kw (2.6 hp) at 7,500 rpm and 2.5 Nm at 7,600 rpm when compared to a standard stock exhaust and tested on the Akrapovič dyno.
This product is for use on closed-course competition circuits only. The exhaust meets the current FIM noise limits and delivers a deep racing sound. No remapping is needed and, with a simple plug-and-play installation, the Evolution Line (Titanium) fits both the Kawasaki KX450 and KX450X models.
For riders required to meet the new 109 dB FIM noise limitation, installing the optional V-TUV385 noise insert is mandatory.
FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE.

EXPERIENCE THE SOUND
Immerse yourself in the sound of the Kawasaki KX 450 / 450X exhaust systems.
| Unit | Akrapovič | Max gain | |
|---|---|---|---|
| Max. power | kW | 40.8 / 9950 rpm | + 1.9 / 7500 rpm |
| HP (m) | 55.5 / 9950 rpm | + 2.6 / 7500 rpm | |
| HP (i) | 54.7 / 9950 rpm | + 2.6 / 7500 rpm | |
| Max. torque | Nm | 45.7 / 7000 rpm | + 2.5 / 7600 rpm |
| lb-ft | 33.7 / 7000 rpm | + 1.8 / 7600 rpm | |
| Weight | kg | 3.15 | - 1.3 |
| lb | 6.9 | - 3 | |
| % | - 29.8 | ||
| Volume | dB | 114.4 / rpm | 0.5 |
| Inst. time | min | 45 |
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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