Yoshimura RS-4 Slip-On Muffler for the KTM 790 / 890 Adventure & Husqvarna Norden 901

Yoshimura started off by developing their Works Finish RS-4 muffler profile to compliment the KTM's power delivery. In response, the bike saw an increase of 5.5% in max HP, and 4.7% in max torque. To add to the aesthetics and protection they included a carbon heal guard. 

Power gains, weight savings and an incredible sounding exhaust delivered in a durable package that is developed and manufactured in the USA.

Fitment:

• 2019 - 2020  KTM  790 Adventure
• 2021 - 2022  KTM 890 Adventure
• 2023 - 2025  KTM 890 Adventure
• 2022 - 2025  Husqvarna Norden 901

Optional SA-04-K spark arrestor is available from TMBR MOTO:  CLICK HERE

For Asterisk Universal Carbon Fiber Heat Shield:  CLICK HERE

For all Yoshimura exhaust and hard parts available at TMBR MOTO:  CLICK HERE