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Yoshimura - Comp Series RS-4 Full System (Stainless)

Product Code: YOSHCOMPRS4
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Yoshimura - Comp Series RS-4 Full System (Stainless)

The RS-4 is a unique design with predicated power, a side benefit of a quiet earthy exhaust note that speaks volumes for performance.

This Full System comes with a stainless steel header and mid-pipe, aluminum muffler sleeve, installation hardware, and detailed instructions to get you moving!

Stainless Systems come with a USFS approved Spark Arrested insert installed in the muffler.

REVIEW SNAPSHOT®

by PowerReviews
Yoshimura - Comp Series RS-4 Full System (Stainless)
 
4.8

(based on 12 reviews)

Ratings Distribution

  • 5 Stars

     

    (9)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Durable (7)
  • Easy to use (7)
  • Lightweight (6)
  • Versatile (3)

Cons

    Best Uses

    • Off-road (9)
    • Racing (9)
      • Motorsports:
      • Competitive cyclist (10)

    Reviewed by 12 customers

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    Displaying reviews 1-10

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    5.0

    RS-4 Full System (Stainless)

    By AMcBride423

    from Ohio

    Verified Reviewer

    Pros

    • Durable
    • Lightweight

    Cons

    • Tricky To Attach
    • Tricky to install

    Best Uses

    • Off-Road
    • Racing

    Comments about Yoshimura - Comp Series RS-4 Full System (Stainless):

    Got the RS-4 for my 2010 Honda CRF250r, absolutely love it. You can definitely feel the power gains, bike revs faster and doesnt bog as easily. Installation was a little tricky, when you install it dont thread the bolts all the way in, only enough so the bolt doesnt fall out. Once you get all the bolts in then tighten them each little bey little. Sounds amazing and will make you a head turner when you ride by at the track.

    • Motorsports:
    • Competitive Rider
     
    5.0

    Yoshimura Comp Series Full System

    By 26 Ben

    from Australia

    Verified Reviewer

    Pros

    • Cheap
    • Durable
    • Easy To Use
    • Good Look
    • Lightweight
    • Power Increase
    • Versatile

    Cons

    • Not come with 94db insert
    • Postage costs

    Best Uses

    • Everything
    • Off-Road
    • Racing

    Comments about Yoshimura - Comp Series RS-4 Full System (Stainless):

    Doesn't get Any better than that affordable, good looking massive increase in power. only thing is i think they should come with 94db inserts as i will have to buy. 10/10

    • Motorsports:
    • Competitive Rider, Mechanic
     
    4.0

    Great exhaust

    By Henrik

    from Sweden

    Verified Buyer

    Pros

    • Easy To Use
    • Good price
    • Powerful

    Cons

    • Wears easily

    Best Uses

    • Off-Road

    Comments about Yoshimura - Comp Series RS-4 Full System (Stainless):

    Great system, great price. Improves the bikes bottom end power imo. The biggest con would be that when you fall the plastics on the right side melts in a little on the muffler, which isn't that funny! Mounted on my Crf250 2012

     
    4.0

    Good pipe

    By Billy Crystal

    from Australia

    See all my reviews

    Verified Buyer

    Pros

    • Adds Power
    • Cheap
    • Durable
    • Easy To Use

    Cons

    • Heavy

    Best Uses

    • Racing

    Comments about Yoshimura - Comp Series RS-4 Full System (Stainless):

    Good exhaust note
    Noticeable increase in power
    Looks good

    • Motorsports:
    • Racer

    (2 of 2 customers found this review helpful)

     
    5.0

    Amazing!!

    By Barry

    from Ireland

    Verified Buyer

    Pros

    • Easy To Use
    • Lightweight
    • Versatile

    Cons

      Best Uses

      • Off-Road
      • Racing

      Comments about Yoshimura - Comp Series RS-4 Full System (Stainless):

      Amazing sound,amazing looking and amazing performance!!What more could you ask for!!

      • Motorsports:
      • Competitive Rider

      (1 of 1 customers found this review helpful)

       
      5.0

      AWSOME EXHAUST

      By MX-LARS

      from NORWAY

      Verified Buyer

      Pros

      • AWSOME SOUND
      • Durable
      • Easy To Use
      • GREAT POWER INCREASE
      • Lightweight
      • Versatile

      Cons

        Best Uses

        • Racing

        Comments about Yoshimura - Comp Series RS-4 Full System (Stainless):

        GREAT EXHAUST. VERY GOOD PRODUCT FOR THE PRICE. AWSOME POWER AND SNAPPIER THROTTLE RESPONSE. I LOVE IT!!!

        • Motorsports:
        • Competitive Rider
         
        4.0

        Awesome

        By Max

        from Australia

        Verified Reviewer

        Pros

        • Durable
        • Easy To Use
        • Lightweight

        Cons

        • Sounds Bad

        Best Uses

        • Off-Road
        • Racing

        Comments about Yoshimura - Comp Series RS-4 Full System (Stainless):

        I put this pipe on my 2010 CRF 250, the power increase was unbelievable, has heaps more pop off the bottom but also screams on forever.
        The only complaint i have is that it doesnt sound as good as say an akro or FMF.
        But for the price it is amazing

        • Motorsports:
        • Casual Rider, Competitive Rider, Mechanic, Motorcycle Enthusiast
         
        5.0

        awsome pipe, awsome sound & awsome price

        By myer

        from NSW, AUSTRALIA

        Verified Buyer

        Pros

        • Easy To Use
        • Price
        • Sound

        Cons

        • No cons

        Best Uses

        • Off-Road
        • Racing

        Comments about Yoshimura - Comp Series RS-4 Full System (Stainless):

        this producy is awsome it s everything i asked for and more so cheap and easy to use it has made my bike 5 times faster and easier to race.

        • Motorsports:
        • Competitive Rider
         
        5.0

        cant belive the power it produced

        By skin

        from karratha australia

        Verified Buyer

        Pros

        • Durable

        Cons

          Best Uses

          • Long Rides
          • Off-Road
          • Racing

          Comments about Yoshimura - Comp Series RS-4 Full System (Stainless):

          the power increase was amazing in boosted my starts to get the hole shot everytime and now winning races

          • Motorsports:
          • Competitive Rider
           
          5.0

          Great exhaust

          By KIWImxer

          from Gold Coast, Australia

          Verified Reviewer

          Pros

          • Big improvement over stk
          • Excellent fit

          Cons

            Best Uses

            • Racing

            Comments about Yoshimura - Comp Series RS-4 Full System (Stainless):

            This was a great add on for my CRF450. Easy to install, a great fit and well made. Excellent price compared to the other big brands.

            • Motorsports:
            • Competitive Rider

            Displaying reviews 1-10

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