yoshimura 4s-rd ???

bw51
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GB
bw51
Edited Date/Time 12/22/2013 6:10pm
After lots of head scratching and research think this is the pipe im going for on my 2011 crf 250... anyone know about them or use 1??
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luv2roost
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luv2roost 12/21/2013 10:49am
12/21/2013 10:49am
I have one on my '13 rmz250, I mostly bought it because of the bitchin' factor, but performance was good, I picked up a little bottom-end hit and it revs more freely on top. It was quite a bitch to re-pack because of the dual core, but overall its a sweet setup
racer369
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racer369 12/21/2013 4:14pm
12/21/2013 4:14pm
I put one on my YZ 450 Hurt bottemend alot. But used my tuner and added another bottemend program and it has way MORE power from idle to top. I LOVE IT! And looks cool. Not as loud as FMF 4.1
Socket946
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Socket946 12/21/2013 9:28pm
12/21/2013 9:28pm
The Honda guys love them. I haven't tried one.

I did the DRD..It's worked fine. I believe it was MXA or one of the rags, And Sisneros that said the stock pipe makes good power, it's just super heavy.
Socket946
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Socket946 12/21/2013 9:28pm
12/21/2013 9:28pm
The biggest issue with the '11 Honda, is the ECU is mapped super lean from the factory.

The Shop

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mx-4-2
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Manakin Sabot, VA US
mx-4-2 12/22/2013 6:10pm
12/22/2013 6:10pm
bw51 wrote:
After lots of head scratching and research think this is the pipe im going for on my 2011 crf 250... anyone know about them or use...
After lots of head scratching and research think this is the pipe im going for on my 2011 crf 250... anyone know about them or use 1??
We have the Yoshimura 4s titanium on our '10 CRF 250. We have been very pleased with it. Had the stainless version to start with until a nasty crash did in the head pipe. Yoshimura have these on sale off their web site. $495 in the clearance section for the titanium full system.

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