I'm looking for a pipe to give me more low end for the 250F but not hurt it on top end to much. Any suggestions on which pipe to get?

I have a yoshi titanium pipe with a stainless steel header that helped the low end on my bike. I also have 3 different inserts with which you can tune the pipe to your needs.
It worked great but I sold the bike.
I will sell you the pipe if you are interested
KTMBruce@yahoo.com

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the DR.D pipe is a great pipe and it comes with a sparky insert ..

The DSP SX is a great header to use. You can then use their silencer or use a 426 miffler (which is MUCH quieter). Or you can use any 426 muffler that will slip on to the stock 426 header (the o/p diameter of the header is the same size as the o/p of the 426 header). The header goes for $169.00 and I have an extra 426 muffler lying around if you want it.

I have a DSP SX header pipe I will sell, it is in excellent condition. I also have the muffler but it is in only in fair condition but works fine. I swithed to a CRF so I dont need the pipe. This pipe definitly adds bottom end while also improving the rest of the powerband. I loved it. I will sell it for $150 if anyone is interested.

Mikeo I would like to talk to you chack your profile