Yoshi RS4 or RS4D?

howorks
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howorks
Edited Date/Time 7/7/2012 5:16pm
Looking for rider feedback on best Yoshi exhaust for '12 KX250F. Curious about the difference between the dual outlet and standard one. Thanks for the objective feedback.



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mxb2
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mxb2 7/1/2012 11:04am
7/1/2012 11:04am
Twin hole, better low end for smaller tracks. Single hole, more rev, higher speed tracks, both great products.
JJO741
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JJO741 7/1/2012 12:07pm
7/1/2012 12:07pm
Dual sounds so bad ass. mxb2 pretty much explained it. Yosh makes a great product so you will be happy with either. I would personally go with the RS4D since the Kawi already has a ton of top end power.
mxb2
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mxb2 7/1/2012 1:08pm
7/1/2012 1:08pm
And if you get the single hole pipe and are on a budget, the SS unit is the same performance, less money, a little bit heavier., sturdier, But the ti units are sick.lighter, Keep in mind carbon fiber needs packed more often and is very sensitive to water breaking it down. The twin hole can is badazz! sounds so good . good luck man, keep us posted.
09 YZ250F 7/1/2012 1:42pm
7/1/2012 1:42pm
I have the RS4 Slip on for my YZ250f. I love the sound, a lot more throatier than the stock pipe.

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Vet57
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Vet57 7/2/2012 6:35am
7/2/2012 6:35am
09 YZ250F wrote:
I have the RS4 Slip on for my YZ250f. I love the sound, a lot more throatier than the stock pipe. [img]https://p.vitalmx.com/photos/forums/2012/07/01/004_215610.JPG[/img]
I have the RS4 Slip on for my YZ250f. I love the sound, a lot more throatier than the stock pipe.

How was the performance with this on your YZF?
howorks
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howorks 7/6/2012 7:01pm
7/6/2012 7:01pm
We went with RS4D. My rider is healing from a collar bone break so it will be 3 weeks before I know about performance.





mxb2
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mxb2 7/7/2012 8:56am
7/7/2012 8:56am
That kawy is sick man, Why did you choose the yosh? just curious. I have the factory fmf on my 12 kawy 450, badass, but the yosh on my rmz, Both great products. Does the twinhole have inserts that come out, My buddy has a crf 250 with the twinhole and it looks like he took out the inserts.
howorks
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howorks 7/7/2012 5:16pm
7/7/2012 5:16pm
mxb2 wrote:
That kawy is sick man, Why did you choose the yosh? just curious. I have the factory fmf on my 12 kawy 450, badass, but the...
That kawy is sick man, Why did you choose the yosh? just curious. I have the factory fmf on my 12 kawy 450, badass, but the yosh on my rmz, Both great products. Does the twinhole have inserts that come out, My buddy has a crf 250 with the twinhole and it looks like he took out the inserts.
Yosh supports my son so it was never a question. The inserts on the muffler come out but all that does it make it louder!

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