The RS22 Under-seat Box Delete has been developed specifically for the 2026 KTM 990/R, delivering a sharp increase in sound, presence, and visual impact while retaining everyday usability. This system allows you to keep your stock headers while removing the silencer box, and retain the option to upgrade to titanium headers later on.
This is a twin-exit titanium system, engineered to sit cleanly under the tail and compliment the Duke 990’s aggressive race geometry. Lightweight and compact, the RS22 offers a properly tuned exhaust note without compromising fitment or rideability.
RS22
A twin-exit system.
Cylindrical can design
Produces a sharp, tuned, motorsport-inspired exhaust note
Available in 140mm sleeve length
RS22-V
A twin-exit system using two V3 Mini silencers.
Conical can design
Delivers a deeper, fuller tone with added bass
Available in 140mmor 200mm sleeve lengths
SM MINI PAIR
A Twin-exit system using two SM Mini Silencers
Brand new design
Delivers a deep, tuned sound
Available in 140mm or 200mm sleeve lengths
SPECS
Full titanium construction
Advanced flow dynamics
No remap required with box delete
Full instructions supplied
Includes 2 end cans
NOT compatible with the stock Passenger/Pillion Pegs.
Weight
Stock Silencer - 3.75kg
RS22 S/O - 0.8kg
Total Weight Saving - 2.95kg
DB LEVELS - TESTED AT 4700RPM
Box Delete
Stock - 92db
RS22 140mm - 102db
RS22-V 140mm - 103db
RS22-V 2000mm - 100db
SM MINI 140mm - 103db
SM MINI 200mm - 100db
This system is compatible with our headers and the stock headers.
