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Yoshimura RS4 Stainless System - KTM SXF 250 2019-Current

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  • £679.99


Yoshimura RS4 Stainless Pipe System for KTM SXF 250 2019-Current - Yoshimura Exhaust Systems

Yoshimura R&D has developed the all-new Yoshimura RS-4 was designed after extensive testing and the results are profound.  KTM and Husqvarna have introduced LE and Rockstar Editions for 2018 and now Yoshimura is ready to add to the experience of these awesome dirt bikes.  Brand new from KTM and Husqvarna for 2019 are re-vamped 250 SX-F / FC250 and SX-F 350 / FC350.

Both the 250 and 350 make good HP and torque in stock form, but nevertheless we went to work to improve power in every RPM range on these twin race machines and the gains we were able to attain with our RS-4 are quite impressive.

We wound up with the 250 peak HP at 6.6% and a big gain of peak torque of 14.2% The 350 was even more impressive with a peak HP gain of 10.2% and peak torque gain of 7%. The work horse for much of this performance is our RS-4 muffler. With its Polyresonant Duplex front chamber to add overall volume, and the special stepped two-stage baffle configuration that reduces sound without restricting performance. These Austrian 250 and 350 race machines are ready for the top of the podium now! Spark arrestor available separately.

 Yoshimura RS4 Stainless Exhaust Pipe System features:

  • Stainless steel header/Mid-pipe
  • Carbon fibre end cap
  • Aluminum muffler sleeve
  • Installation hardware
  • Detailed instructions
  • 94db sound insert installed
  • Yoshimura Stainless Full System weight: 7.9 lbs. vs Stock Weight: 8.1 Lbs