Yoshimura RS-4 Titanium Full System Exhaust

Yoshimura RS-4 Titanium Full System Exhaust
Yoshimura RS-4 Titanium Full System Exhaust

$850.46 - $945.00
10% Off - Save up to $100.00

Description See Also: 7 Reviews 13 Questions Fitment
Item #YSH000Q

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7 Reviews
5.0 out of 5 stars
5 Star   7 4 Star   0 3 Star   0 2 Star   0 1 Star   0
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All Reviews
DaveB5
AMAZING

all i can say is wow i mean the bike feels better sounds better and u can feel the power increase installed this on my 2012 crf250r and i am just speechless

Bradleygt Verified Purchaser
Tampa, FL
Awesome pipe!!!

I put this pipe on my Crf450 and it dramatically improved the throttle response, and totally eliminated flameouts/pop stalls.

Wunnabejeremy
St. Charles, MO
Best purchase for exhaust

Exhaust fits perfectly on the bike, makes coldstart a lot easier, give the power a little more of a "kick" to the bike, and give it a beefier sound.

LAK317 Top 250 Contributor
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 4/5
Awesome

This pipe adds tons of power! I was really surprised how much i noticed it, it added power everywhere. The low end power is really brought to life on my 2010 crf250r. Install was simple and so far after about 5 months I've had no trouble at all. Durability seems good too.

GET IT!!!!!

BRAAAAPPPP!
honda475
walkill, NY
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Well worth the money

i put this exhaust on my 2010 honda 250f. the bike was kinda slow stock but ive never noticed such a power gain from just an exhaust as much as i did with this one. it also sounds great. it sounded like the bike had motor work from just the exhaust. i have a full race motor in it now and this is the best exhaust ive ever ran on any of my bikes! GET ONE!!!!!

MotoX331 Top 500 Contributor
Austin, TX
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Excellent Product

One of the best products I've purchased and a must have for the '09 CRF450. The '09 CRF450 falls on its face at about 8200RPM, but this pipe adds about 3+hp on the dyno and brings peak power to about 9500RPM which is a massive improvement.

I didn't realize at first, but I thought the included 94db insert was missing when I unpacked everything. Turns out it is pre-installed and you can see it in the product photo. The pics I added are the pipe without the insert (99db)(almost 1hp gain) and the free exhaust plug and spring puller that come with the kit.

Don't bother with the full carbon kit. It only saves 0.2lbs over this full titanium and carbon will breakdown as the packing wears out. This drops over 2.0lbs from the stock unit. Oh and Titanium is the easiest to maintain(clean) material there is. The stainless calls for occassional polish every few hours of use etc..

So far I love this new setup and it looks totally trick!

Yoshimura RS-4 Titanium Full System Exhaust
Yoshimura RS-4 Titanium Full System Exhaust
MXRacer97 Top 250 Contributor
Santa Fe, NM
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
AMAZING

For the 09-10 CRF450R this exhaust is amazing! Massive power increases throughout the ENTIRE powerband.I actually have a Pro Circuit T-4R on my CRF450R, which takes away a little bottom and adds a ton of top end (which I prefer for my riding style). I had the opportunty to try/test the Yoshimura exhaust and it adds power everywhere! It's also premium quality and style, as is the Pro Circuit.

13 Questions
Answered:   13
Not Yet:   0
Stuart
Q: Will this fit a 2006 RMZ450?
27 days ago
MotoSportExpert
MotoSport Staff Expert
26 days ago
A: No sorry it will not fit your 2006 RMZ450.
Steve
Q: Is there a big difference between the YZ250F 2014 and 2015 exhaust?
1 year 2 months ago
MotoSportExpert
Expert MotoSport Staff
1 year 2 months ago
A: The Yoshimura RS-4 Titanium Full System Exhaust would be the same for the 2015 and 2014 YZ250F.
DOMM
Location: Tiverside
Q: Where can I find the set screw for the RS-4 silencer must have blew out? 2014 RMZ 450?
1 year 6 months ago
MotoSportExpert
MotoSport Staff Expert
1 year 6 months ago
A: I would contact Yoshimura directly at E-mail: seang@yoshimura-rd.com
T: (909) 628-4722 Ext: 410
http://www.yoshimura-rd.com/contact_us.asp
Redneckreggie
Location: Perth
Q: Mate selling his Rs-4 yoshimura off a 2010 crf250. Will this full system fit on my 2011 450?
1 year 8 months ago
MotoSportExpert
Expert MotoSport Staff
1 year 8 months ago
A: No. The 2010 Honda CRF250R exhaust would be different than the 2011 CRF450R exhaust.
Bruce666
Q: There is a yoshimura rs-4 (short version like 2009-10) available for my crf 450 2011 ?
2 years ago
or can i buy the 2010 rs-4 version and adapt to my 2011CRF 450 ?
MotoSportExpert
Top 1 Contributor
2 years ago
A: No. Yoshimura list pipes for the CRF450R for models 2009-2010, and different part numbers for 2011-2012. The only other exhaust offered from Yoshimura is the RS-4D for your 2011 CRF450R.
Richey52
Location: Alexandria, LA, USA
Q: Resonance chamber?
2 years 4 months ago
I've seen some of the pros bikes having resonance chambers on the header. Can I get that? Or is that a custom thing?
MotoSportGrantK
MotoSport Staff Expert Top 1 Contributor
2 years 3 months ago
A: Yes, companies like FMF and Pro Circuit offer exhaust systems with a resonance chamber. The Yoshimura RS-4 will not have a resonance chamber. I would recommend taking a look at the Pro Circuit Ti-6 system or the FMF Factory 4.1 exhaust system.
moto225
Q: Will a rs4 system from a 2011 crf450 fit my 2009 crf 450?
2 years 7 months ago
MotoSportRyanT
Expert MotoSport Staff
2 years 7 months ago Location: Portland, OR, USA
A: No, The Yoshimura RS-4 exhaust systems for the 2009 and 2011 Honda CRF450R are different and are not interchangeable. The 2011 exhaust system will not mount up correctly on your 2009 Honda CRF450R.
CRF713R
Location: Lockport, LA 70374, USA
Q: Will this work on a 2011 crf450r with a GET ecu? Or will other mapping be requird?
2 years 10 months ago
MotoSportRyanT
MotoSport Staff Expert
2 years 10 months ago Location: Portland, OR, USA
A: The GET ECU should work well with any aftermarket exhaust system. The Performance MAP ready inside for stock bike and with racing exhaust. There may be some tuning required for this particular exhaust system. You can upload different maps for the GET ECU via www.getdata.it
Dustin98
Location: Colorado, USA
Q: Will the muffler fit the stock header?
2 years 11 months ago
MotoSportRyanT
MotoSport Staff Expert
2 years 11 months ago Location: Portland, OR, USA
A: This is actually a full exhaust system, it would include the Yoshimura Header pipe. The muffler will only work with the Yoshimura Header, it will not fit the stock header.
sxmx063
Location: Ohio, USA
Q: Does the rs-4 from a 2011 crf250r fit on a 2010 crf250r?
Over 3 years ago
A buddy of mine has a 2011 and is wanting to sell it to me but i dont want him to ship to me if it doesnt work. Thanks
MotoSportExpert
MotoSport Staff
Over 3 years ago Location: Portland, OR, USA
A: Yes, the 2010 and the 2011 CRF250R will share the same exhaust systems.
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