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View Full Version : Muffler for 250sx


dirthead
05-19-2009, 04:04 PM
Would Changing the muffler on my 250sx add a bit more power? I think its just the stock pipe on it right now.
jeopardy98
05-19-2009, 04:27 PM
I don't know but if you do please let me know what you want for your stock pipe, lol.
the great gazoo
05-19-2009, 06:24 PM
No power increase at all with just a pipe, like any dirt machine. With a 350X carb & aftermarket pipe, yes. You have to use the main & pilot jets from the SX in the 350X carb(I think?), though. Tri-Z Nate & dirtcrasher are your best resourses after doing a search in Trikesylvania.
Dirtcrasher
05-19-2009, 07:10 PM
Even just a Cobra exhaust (which is loud as all hell) the 250SX does in fact wake up and the main jet can be opened up - with the air box lid OFF.

One step further is the 350X carb and yes you may use the 250SX pilot, but the main well have to jump up a bit.

Honestly, because the 250SX is limited in gearing, I think those changes are about as far as any SX owner should go. The suspension also limits you and IMHO, a ton of extra power isn't needed.

^HI GAZOO!!!!!!!!!!!!!!!!!!!!!!