Yoshimura RS-4 Street Full System Exhaust

$647.10 (10% off)
5.00 out of 5 stars
Yoshimura RS-4 Street Full System Exhaust
Yoshimura RS-4 Street Full System Exhaust
  • Description
  • Reviews (1)
  • Q&A (1)
  • Fitment

The Ninja 650 is a unique and versatile machine. Yoshimura took the opportunity to create a system that would not only improve performance, but also enhance characteristics inherit in the original engineering, i.e. centralized mass and low-center of gravity. They were able to achieve this through use of their RS-4 Muffler mated to a Full System, giving Ninja 650 owners the ultimate in Yoshimura power.

  • Yoshimura full system includes stainless steel RS-4 muffler with turn-out carbon fiber end-cap, stainless steel header and tail-pipe, low-volume insert, installation hardware, and step-by-step instructions.
  • Note: For closed course competition use only. Not intended for street use.
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Overall 5 out of 5 stars
Location: Indiana, USA
2014 Ninja 650

I replaced my 09 Ninja 650 with a 14. I had a yoshimura on the 09 that i loved which is why i choose them again. This system is awesome once you remove the baffle (1 screw). Loud but not too loud. I do not have a power commander on the bike. It does backfire sometimes but only when its in second gear and you've had it wound up and letting the engine break slow you down but not always. Other than that no issue. Super deep tone. First day out i received a number of compliments at stop lights and in store parking lots. Assembly is easy. It only took me a little over a half hour with an extra set of hands. Minimal tools needed. Assembly can be done with a screw driver, hex keys, and sockets. Not to mention i could also notice a weight difference while riding surprisingly. The stock exhaust is a big heavy beast.

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Total Questions (1)
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Mikegee Over 6 months ago Location: Portland, OR, USA
I have a 2014 650 Ninja ABS. If I Install the Yoshimura RS-4S Will my stock Fuel Injection work or will I need to upgrade?
MotoSport Staff Expert
Over 5 months ago
Generally when installing a full system reprograming will be needed.
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