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Ktm sxf 250 2017 FMF 4.1

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Hello guys !
I been told the ktm sxf 250 2016-2017 losing power with full system fmf 4.1

if i will put the silencer alone with stock head? its will gain some hp? or still lose from stock

much ty

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10 hours ago, tamir95 said:

Hello guys !
I been told the ktm sxf 250 2016-2017 losing power with full system fmf 4.1

if i will put the silencer alone with stock head? its will gain some hp? or still lose from stock

much ty

But man ! Are you still searching for this !? You have been dragging this question on all over Vital MX for several months ! If it does matter so much to you...just get another brand of exhaust or just put on the stock exhaust !!!

God damn ! 

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Yosh rs4 adds power buy thay

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