Jetting a nsr with arrow pipe

[nsr125sp]

Hello, Has anyone fitted a arrow race pipe to there nsr and re-jetted it? if so could you please tell me the jet sizes,
Cheers Oliver
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Nsr 125, Vfr 400
https://www.bikepics.com/members/nsr125sp/

[craigT19]

just flicking through a few mail order bike books...and they don't actually make a jet kit for the nsr

so unless your stock exaust is trashed...save your money, an arrow exhaust will add maybe 2bhp...and may result in the engine blowing up, is it really worth the money?


regards
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Bikes owned :- 2001 nsr125, 1999 zx6r, 2006 yzf-r1, 2009 xmax 250, 2012 yzf-r1, 2015 MT-07
Current bike : - 2016 MT-10
BCF member pops. sadly missed 1945-2003

[stevo as b4]

Its possible to find a fraction more power from re-jetting to suit a new pipe, but if your NSR was jetted correctly for a de-restricted std pipe, then it should run fine without any changes on the Arrows pipe. gain as previously said would be 1-2bhp, not sure you'd notice alot of difference. I would imagine it would sound slightly more tinny/crisp, depending on how much you like the sound of a 2 stroke that is.