S-Y9R21-EET
Racing Line (Titanium) for


Power
+3.4 kW
at 9500 rpm
Torque
+3.2 Nm
at 5000 rpm
Weight
-1.8 kg
A high-grade titanium muffler outer sleeve and end cap is combined with a stainless-steel link pipe and headers. It is a complete exhaust system for the Yamaha R9 that follows the look of the Akrapovič exhaust systems for the Yamaha R6, R7, and R1, with a design similar to the Akrapovič exhausts used in the World Supersport Championship.
The muffler exits on right side of the bike for a racing look, and it is supplied with an aluminium muffler bracket. Developed for closed-course competition circuits only, this system has no catalytic converter or pre-muffler, and so ECU remapping is mandatory.
Please notice that two different noise inserts are offered with the product.
THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.
EXPERIENCE THE SOUND
Immerse yourself in the sound of the Yamaha R9 exhaust systems.
| Unit | Akrapovič | Max gain | |
|---|---|---|---|
| Max. power | kW | 85.4 / 10000 rpm | + 3.4 / 9500 rpm |
| HP (m) | 116.2 / 10000 rpm | + 4.6 / 9500 rpm | |
| HP (i) | 114.6 / 10000 rpm | + 4.5 / 9500 rpm | |
| Max. torque | Nm | 90.2 / 8000 rpm | + 3.2 / 5000 rpm |
| lb-ft | 66.5 / 8000 rpm | + 2.4 / 5000 rpm | |
| Weight | kg | 5.16 | - 1.8 |
| lb | 11.4 | - 4 | |
| % | - 26.3 | ||
| Volume | dB | 103.2 / 6500 rpm | 7.7 |
| Volume without noise insert | dB | 105.1 / 6500 rpm | 9.6 |
| Inst. time | min | 60 |
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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