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Yoshimura RS-4 Comp Series Slip-On Exhaust With Carbon Fiber End Cap
Yoshimura RS-4 Comp Series Slip-On Exhaust With Carbon Fiber End Cap

$382.50 - $445.99
10% Off - Save up to $49.01

Item #YSH000I

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10 Reviews
4.9 out of 5 stars
5 Star   9 4 Star   1 3 Star   0 2 Star   0 1 Star   0
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All Reviews
Verified Purchaser
Arkansas
Durability 4/5 Ease of Installation 5/5 Performance 1/5 Power 5/5 Style 5/5
Easy install and great sound

I've had one in the past great sound easy install and looks sweet

Verified Purchaser
Neosho,
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Awesome slip on

Installation and finish is spot on. Very good materials used and everything lined up perfectly. Seemed to wake up my 2013 rmz450. Bolted up no problem to the factory head pipe.

Yoshimura RS-4 Comp Series Slip-On Exhaust With Carbon Fiber End Cap
Hawaii
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Yoshi

Awesome

Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
2012 YZ450F

Great sounding pipe and also can tell a bit of difference in power

Verified Purchaser
Durability 5/5 Ease of Installation 4/5 Performance 5/5 Power 5/5 Style 5/5
Worth the $$

Bought this slip on for my 2012 RMZ and it provided a noticeable power gain. Better sound and better looks as well. Only thing I wasn't terribly pleased with was installation... I actually had to trim the pipe 1/16 in order to get it to bolt up correctly.

Verified Purchaser
Durability 4/5 Ease of Installation 5/5 Performance 4/5 Power 4/5 Style 5/5

Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5

San Jose, CA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Wake Up Your Bike!!

After buying my 2011 yz450 I began researching what exhaust worked best on the bike. Everywhere I looked they raved about the Yosh and its massive power increase across the board. I decided to order the slip on and find out for myself before I went and bought the full system. Once installed and remapped the EFI the bike pulls longer in every gear, comes out of corners quicker looks great and sounds awesome without being too loud. I am very happy with my choice and recommend this pipe if you want to get those extra ponies.

Yoshimura RS-4 Comp Series Slip-On Exhaust With Carbon Fiber End Cap
Southern Oregon
Sweet

Great Buy ,Good Price, Sweet Sound, And a Big pickup on the low end makes the RMZ 250 much more snappy on the low end than stock, We think this was a great investment for the bike and lets us stay in stock classes.

Verified Purchaser Top 250
Santa Fe, NM
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Excellent

If you're on a budget and can't afford a full exhaust system, this Yoshi slip on is your best option for the 2010 CRF250R! For the price you really can't beat it. For a slip on it's really impressive! It adds over 1 horsepower, improves the weak bottom end and only adds power to the weak spots. It doesn't trade or take away power anywhere (like some other exhausts). It's also a great looking and premium quality exhaust. Motosport.com has an amazing price on this exhaust too!

16 Questions
Answered:   14
Not Yet:   2
Jimmy
Q: Will this exhaust fit on my 2017 wr250f?
1 year 4 months ago
Isaac
Top 10
1 year 4 months ago
A: We do offer the Yoshimura RS-4 slip-on exhaust with aluminum can with carbon fiber end cap for your model.
jackiswack63
Q: Is it below 99dB on a YZ250FX with the spark arrestor?
1 year 6 months ago
Kat9
Q: Will this fit on my 2014 crf450r
1 year 6 months ago
I want only a single.
KawiBoy1212
Q: Will this work for a 2014 kx250f? With the oem header
1 year 11 months ago
It says it doesn't but people are telling me it will work on my bike
MotoSportExpert
Expert MotoSport Staff
1 year 11 months ago
A: Please call one of our sales professionals to inquire about current availability for your bike.
Dirt Bike / ATV: 1-888-676-8853
bill
Q: I'm having some trouble fitting this exhaust on my crf250r 2011.
Over 3 years ago
I'm having some trouble fitting this exhaust on my crf250r 2011. The front and rear bolt holes don't line up with the exhaust hole, the exhaust bolt holes are about 1/2 inch forward from the holes not the bike frame.
MotoSportExpert
Expert MotoSport Staff
Over 3 years ago
A: Yoshimura products are excellent quality and generally have zero fitment issues. Please give us a call at 888-676-8853 so that we can verify part numbers to make sure it wasn't mislabeled and that you have the correct exhaust for your bike.
steven
Q: Will this pipe fit on a 2009 rmz 450 and work with the oem header
Over 3 years ago
MotoSportExpert
Expert MotoSport Staff
Over 3 years ago
A: Yes. the Yoshimura RS-4 Comp Series Slip-On Exhaust With Carbon Fiber End Cap will work on your 2009 Suzuki RMZ450 with stock head pipe. Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct exhaust for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Faircloth50
Q: Will this pipe slip on to my 2015 suzuki rmz450 stock header pipe
Over 3 years ago
MotoSportExpert
Top 1 Contributor
Over 3 years ago
A: Yes, the RS-4 slip on will work with your factory OEM header. You can download the installation instructions here:

http://www.yoshimura-rd.com/images/219202D320.pdf
Flipper
Q: What Yoshi pipe will fit my 2015 WR250R
Over 3 years ago
Looking for bottom and mid range boost for my 2015 Yamaha WR250R
MotoSportExpert
Top 1 Contributor
Over 3 years ago
A: We do not list a 2015 Yamaha WR250R model. We do list a WR250F model in 2015 that Yoshimura does make a RS-4 slip on for. Please keep in mind that all products are designed for US models only.
gooner29
Q: Mapping issues?
Over 3 years ago
how do i tell if i have to remap my bike? i have the rs-4 slip-on already installed on my 2009 crf450r. it feels like i have to re do my valves or something. it ran great when i first put it on but now my bike is super cold blooded and hard to start when cold whereas before she started 3rd kick every time.
MotoSportExpert
Top 1 Contributor
Over 3 years ago
A: Normally when installing a slip-on only minor changes to the air/fuel ratio are needed, if any at all. If your bike is currently running properly, likely you will not have to make any changes after installing this slip-on. I would recommend installing the exhaust and riding the machine to see how it is running then decide if you need an purchase an aftermarket EFI tuner .

Unfortunately we at Motosport.com are not able to give you repair advice. We highly suggest that you purchase an OEM service manual for your machine and refer to it to answer your repair questions. If you need more assistance, please consult a local repair shop to further assist you in your repairs. If you need parts to assist in your repairs, we are happy to assist you with your parts order.
Roddy
Q: Will this pipe fit on my 2009 rmz250?
Over 3 years ago
MotoSportExpert
Expert MotoSport Staff
Over 3 years ago
A: No, unfortunately this Yoshimura RS-4 Comp Series Slip-On Exhaust With Carbon Fiber End Cap is not available for you 2009 Suzuki RMZ250.
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Fitment
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See Fitments
# Part Numbers
Product Variant Manufacturer Part #
Signature / Aluminum 219222D320
Signature / Aluminum 234822D320
Signature / Aluminum 228402D321
Signature / Aluminum 225802D320
Enduro / Aluminum 263502D321
Signature / Aluminum 218312D320
Signature / Aluminum 219202D320
Enduro / Aluminum 234802D321