Race R77 Stainless Steel 3/4 Slip On Exhaust


For 17-18 KTM RC390 & 390 Duke

Out of stock

SKU: 16381CJ520YOS Category: Tag:


The KTM RC390 and 390 Duke are entry level bikes that can quickly be transformed into potent race bikes/track day machines. Yoshimura has pumped up the looks and performance on these small, yet fun bikes with our Race Series 3/4 systems in stainless/carbon Mini R-77 muffler options.

When heading to the race track, everything counts, with either muffler option you loose half the weight of the stock system and gain 2.5% max H.P. and 3.3% max ft. lbs. of torque. Styling and sound are all Yoshimura with our classic R-77 profile muffler. We’ve made the performance, now its time for you to realize the power!

Proudly made in the USA.

2017 KTM RC390 Sound – Stock vs. Yoshimura R-77 3/4 Race Series system

New Yoshimura Works Finish takes on a unique coloring after it goes through a heat cycle on the motorcycle that looks much like those titanium works components our factory racers use.

  • Contemporary Satin/matte finish
  • Uniform heat coloration
  • Increased fatigue strength
  • Increased scratch and stain resistance


Additional information

Weight 256 oz
Dimensions 30 × 15 × 8 in


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Make Model Year
KTM 390 Duke 2017
KTM RC390 2017 - 2018

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