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 PowerReviewsPros
- Easy to use (6)
- Durable (5)
- Lightweight (4)
Cons
Best Uses
- Off-road (7)
- Racing (7)
- Motorsports:
- Competitive cyclist (8)
Reviewed by 10 customers
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Displaying reviews 1-10
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
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
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
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
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
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
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
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
Pros
- Durable
Cons
- Wears Easily
Best Uses
- Off-Road
Comments about Yoshimura - Comp Series RS-4 Full System (Stainless):
Perfect for my RM-Z
- Motorsports:
- Competitive Rider
Pros
- Easy to install
- Lightweight
Cons
Best Uses
- Off-Road
Comments about Yoshimura - Comp Series RS-4 Full System (Stainless):
Awesome pipe on the track for my KX2520F
- Motorsports:
- Competitive Rider
Displaying reviews 1-10













