1. Safety Information
Please read and understand all safety warnings and instructions before installing or operating this exhaust system. Failure to follow these instructions may result in serious injury, property damage, or voiding of the product warranty.
- Professional Installation Recommended: Installation of this exhaust system requires mechanical knowledge and specialized tools. It is highly recommended that installation be performed by a qualified technician.
- Hot Surfaces: The exhaust system components become extremely hot during operation and remain hot for a period after the engine is turned off. Avoid contact with hot surfaces to prevent burns.
- Hearing Protection: Motorcycle exhaust systems can produce high noise levels. Always wear appropriate hearing protection during operation and maintenance.
- Ventilation: Ensure adequate ventilation when working on the motorcycle, especially when the engine is running, to avoid inhalation of exhaust fumes.
- Secure Fasteners: Regularly check all fasteners for proper torque to prevent components from loosening during operation.
2. Product Overview
The KTM Akrapovic Slip-on Line Exhaust System is designed to enhance the performance and sound of your KTM 890 Adventure/R motorcycle. This system features high-grade materials for durability and a precise fit.

Image: The Akrapovic Slip-on Line Exhaust System, showcasing its sleek design and Akrapovic branding.
2.1 Key Features
- Constructed from high-grade stainless steel and aluminum for durability.
- Features a carbon fiber look finish on the muffler body.
- Includes a removable DB killer for sound adjustment.
- Designed for an ideal match with the motorcycle's existing exhaust system.
3. Package Contents
Verify that all components listed below are present and undamaged before proceeding with installation.
- Exhaust Muffler (with carbon fiber look)
- Mid Pipe
- Mounting Accessories (clamps, springs, bolts, brackets)
- DB Killer (pre-installed or separate)
3.1 Unboxing and Component Overview
Video: This video demonstrates the unboxing of a motorcycle muffler and mid-pipe, showing the individual components and mounting accessories. It highlights the quality of materials and the inclusion of a DB killer.
Video: This video provides a detailed look at the muffler and mid-pipe components, including measurements of various parts to ensure compatibility. It emphasizes the sturdy construction and meticulous workmanship.
4. Installation Instructions
Follow these steps carefully for proper installation. Refer to your motorcycle's service manual for specific torque specifications and additional guidance.
- Prepare the Motorcycle: Ensure the motorcycle is cool and stable on a stand. Disconnect the battery if necessary.
- Remove Stock Exhaust: Carefully loosen and remove the bolts, clamps, and springs securing the original exhaust muffler and mid-pipe. Retain any reusable hardware.
- Install Mid Pipe: Attach the new mid-pipe to the motorcycle's header pipe. Do not fully tighten fasteners yet.
- Install Muffler: Slide the Akrapovic slip-on muffler onto the mid-pipe. Ensure a snug fit.
- Attach Mounting Brackets: Secure the exhaust system using the provided mounting brackets, bolts, and springs. Align all components before tightening.
- Tighten All Fasteners: Systematically tighten all bolts, clamps, and springs to the manufacturer's recommended torque specifications. Start from the header connection and work your way back.
- Inspect: Double-check all connections for tightness and ensure there is no interference with other motorcycle components.
4.1 Installation Demonstration
Video: This video demonstrates the general process of installing a motorcycle exhaust system, including fitting the silencer, ruberizing and fitting brackets, and attaching springs. While the specific motorcycle model may vary, the steps illustrate the typical installation procedure.
5. Operation and Sound Characteristics
After installation, perform an initial start-up to check for any exhaust leaks. The exhaust system may produce a different sound profile compared to the stock system. The included DB killer can be removed or installed to adjust the sound level.
- Initial Run-in: The exhaust system may emit some smoke or odor during the first few uses as manufacturing residues burn off. This is normal.
- DB Killer: The DB killer is designed to reduce exhaust noise. For a louder sound, it can be removed. Consult local regulations regarding exhaust noise levels.
6. Maintenance
Regular maintenance will ensure the longevity and optimal performance of your Akrapovic exhaust system.
- Cleaning: Clean the exhaust system regularly with a mild detergent and water. Avoid abrasive cleaners or brushes that could damage the finish.
- Inspection: Periodically inspect all welds, springs, and mounting points for signs of wear, damage, or loosening.
- Fastener Torque: Re-check the torque of all mounting bolts and clamps after the first 100 miles (160 km) and then periodically as part of your motorcycle's routine maintenance.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Exhaust Leak | Loose clamps or improper sealing. | Check and tighten all clamps. Ensure proper seating of the mid-pipe and muffler. |
| Excessive Vibration | Loose mounting brackets or improper alignment. | Verify all mounting points are secure and the exhaust system is correctly aligned. |
| Unusual Noise | Loose internal components or contact with other parts. | Inspect the muffler for internal damage. Ensure no part of the exhaust is touching the frame or other components. |
8. Specifications
- Model Number: 63505979100
- Brand: KTM / Akrapovic
- Material: High-grade Stainless Steel, Aluminum, Carbon Fiber Look
- Item Weight: Approximately 8 ounces (0.23 kg)
- Product Dimensions: Approximately 35 x 8 x 6 inches (89 x 20 x 15 cm)
- Vehicle Service Type: Motorcycle (KTM 890 Adventure/R 2021)
9. Warranty and Support
This Akrapovic exhaust system is covered by the manufacturer's warranty. For specific warranty terms, conditions, and duration, please refer to the documentation provided with your purchase or contact KTM customer support directly.
For technical assistance, spare parts, or further inquiries, please contact your authorized KTM dealer or the Akrapovic support team.