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S1 Exhaust KTM / 1390 Super Duke R / 2025

Sold Per Kit
Brand SC-Project

SC-Project is a race-tested and race-proven Italian exhaust manufacturer. SC-Project uses its MotoGP, Moto3, Moto2, and Superbike racing experience to push the limits and develop the highest level of exhaust performance.

The SC-Project S1 exhaust is a tapered exhaust with a large outlet diameter for enhanced exhaust airflow. The S1 performance is based on technology directly developed in World Superbike racing. The silencer body features a conical shape for proper back pressure and optimal ground clearance during extreme lean angles.

Aeronautical grade materials
Large-diameter exhaust outlet
Bike-specific exhaust mounting hardware included
24-month factory defect warranty
Racing inspired design

- PART NUMBER
  KTM21-41T
Exhaust Version
Race Version
Exhaust Finish
Titanium, Matte Black Titanium
Exhaust End Cap
Matte Carbon Fiber
Exhaust Type
Slip-on Exhaust
Link Pipe Material
Titanium
dB Killer
Yes
Weight
-1,9 kg (SC 1,3 kg / OEM 3,2 kg )
Sound dB Rating
98 dB at 5000 rpm w/ dB killer - 102 dB at 5000 rpm w/out dB killer
Estimated Power Gains
+4,5 hp at 9000 rpm
Estimated Torque Gains
+3,5 Nm at 9000 rpm
Make/Model/Year
KTM / 1390 Super Duke R / 2024, KTM / 1390 Super Duke R / 2025
Sold
Per Kit
Product
Exhausts & Air Filters
Brand
SC-Project