KTM 990 RC-R DUKE 2026+: RS22 DUEL UNDERSEAT BOX DELETE & FULL RACE EXHAUST SYSTEMS
$4,099.00 – $6,749.00
Select the RS22-V 250MM compliant silencer for BSAU/EU etched number.
All other options will be race use only.
FITTING COMPLEXITY
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Description
2026 KTM 990 RC-R — RS22 Titanium Exhaust System
Underseat Box Delete & Optional Full System
Maximum Flow. Minimum Weight. No Compromise.
Transform your 2026 KTM 990 RC-R with the RS22 Titanium Exhaust range—designed to boost performance, shed weight, and sharpen the bike’s already aggressive aesthetic. Whether you opt for the Box Delete or upgrade to the Full System with titanium headers, the RS22 lineup delivers uncompromising race-focused engineering for the street or track.
RS22 Underseat Box Delete
Designed to retain the stock headers while removing the bulky silencer box, this twin-exit titanium system cleans up the tail section and adds a sharper, motorsport-inspired tone. Lightweight and compact, the RS22 maintains excellent fitment and rideability.
Available Silencer Options:
RS22
Cylindrical can design
Sharp, tuned race note
140mm sleeve length
RS22-V
V3 Mini conical silencers
Deeper, fuller tone
140mm or 200mm sleeve lengths
SM Mini Pair
New SM Mini silencers
Deep, tuned sound
140mm or 200mm sleeve lengths
RS22 Full Titanium System (with Headers Add-On)
Take performance even further with the optional full system upgrade—a complete titanium setup including headers, mid-pipe, and twin-exit silencers.
Engineered for maximum flow and weight reduction, the full system replaces all restrictive OEM components, unlocking the RC-R’s full potential with sharper throttle response and an aggressive race-inspired note.
⚠️ Important: Running this full system requires an ECU remap or the use of our ATOM units to ensure correct fueling and safe operation.
Weight Savings
| System | Weight |
|---|---|
| Stock Silencer (box only) | 3.75kg |
| RS22 Box Delete | 0.8kg |
| Weight Saving (Box Delete) | 2.95kg |
| System | Weight |
|---|---|
| Stock Full Exhaust | 8.65kg |
| RS22 Full Titanium System | 2.0kg |
| Weight Saving (Full System) | 6.65kg |
dB Levels (Tested at 4700 RPM)
| Configuration | dB |
|---|---|
| Stock | 92dB |
| RS22 140mm | 102dB |
| RS22-V 140mm | 103dB |
| RS22-V 200mm | 100dB |
| SM Mini 140mm | 103dB |
| SM Mini 200mm | 100dB |
Key Features
Full titanium construction (headers included in full system)
Twin-exit underseat layout for clean integration
Advanced flow dynamics
Full installation instructions included
No remap required for Box Delete / Remap required for Full System
Fixed internal baffle – not compatible with removable dB killers
Not compatible with stock passenger/pillion pegs
Compatible with OEM headers (Box Delete) or as a complete full system
Important Notes
Road Use: Non-homologated exhaust systems may not comply with local road regulations and are intended for race use only. Noise levels can vary significantly, from standard to extremely loud. Please review the specifications carefully before ordering. If you have any questions or need assistance, feel free to contact us.
Build Times: Our exhausts are built to order, with delivery times ranging from 6 to 10 weeks for standard systems and 10 to 15 weeks for more complex full systems. For the latest estimated delivery times, please visit Current Build Times. These timeframes reflect the handcrafted nature of our exhausts, which are produced by a small team in the UK, as well as the high demand for these limited products.
Exhaust Types:
We offer three types of exhaust systems:
Slip-On Exhausts: Replace the original muffler, retaining the catalytic converter and headers. Ideal for improving sound and aesthetics.
De-cat Systems: Replace both the muffler and mid-section (catalytic converter), keeping the original headers. Offers improved performance and weight savings.
Full Systems: Replace muffler, mid-section, and headers for the ultimate performance upgrade and maximum weight reduction.
Each system caters to different performance, sound, and aesthetic goals. Not sure which option is best for you? Don’t hesitate to reach out—we’re happy to help!
Design Updates: Each exhaust is handmade to order, and our designs are constantly evolving. As a result, the final product may vary slightly from the images shown. These small changes reflect ongoing improvements and ensure you receive the highest-quality product.
Additional information
| Year: | 2026 |
|---|---|
| System: | Decat Box Delete (Replace both the muffler and the mid-section (catalytic converter) while keeping the original OEM headers.), Full Exhaust System |
| Muffler Design: | RS22 140mm, RS22-V 140mm, RS22-V 200mm, SM Mini |
| Muffler Material: | Titanium, Black Ceramic Hardcoat |
| Tips | Black, Orange, Titanium Billet (Extra Charge) |
| Decal/Logo: | Laser Etched, Colour Etched, RCR Etched, RCR Colour Etched |

















