125-200cc power upgrades

i bought my pipe from the us- there should be no difference.
but as i said- i dont feel its such an improvement in top end power.
but also i didnt run it for long- i switched back to standard and now for the WB pipe and 165kit.

Had two fatty pipes on different 125s and they don't make more top end - more mid and in my opinion less right off the bottom

thats exactly what i would say how they perform...

Not my experience in back to back testing. The FMF pipe was the single best upgrade on mine.

Powerblade, any tried it?
Dont seam to be availble fot 125cc after 2008.

Anyone know the stock jetting for cr150?
And the stock gearing?

14/50

35 pilot, 460 main ,#4 slide, can't recall stock needle

Could i please have some help with the jetting? What would the best jetting be for my 2013 CR125? Also, is the pro circuit pipe/silencer better than the FMF

Need your location for jetting, and there are numerous long jetting threads.

From what I've read on here, the pro circuit pipe favours top end power more so than the FMF, at the expense of low end. The FMF made more power everywhere on my CR150

Thanks for that. I live in the Whitsundays region, Queensland Australia

translation of that is
subtropical (temp range between 15 to 40 degrees Celsius) near sea (humidity range between 30% to 80%) and a less then 50m elevation from sea level

Robert-Jan

Thanks for that!