Fmf power bomb header, and Q4. No fuel commander?

Is this ok? Am I gunna hurt my bike in any way?

Probably won't hurt it, but throttle response will suffer compared to using one.

I rode my WR250R back-to-back both with and without my programmer hooked-up while I had my Q4 installed, and the bike felt worse without the programmer.

YZEtc wrote:

Probably won't hurt it, but throttle response will suffer compared to using one.

I rode my WR250R back-to-back both with and without my programmer hooked-up while I had my Q4 installed, and the bike felt worse without the programmer.

^^ This !!

If you have the exhaust done, get a programmer as you'll be losing power/responsiveness with one.
Have you modded the airbox?

Evol wrote:

YZEtc wrote:

Probably won't hurt it, but throttle response will suffer compared to using one.

I rode my WR250R back-to-back both with and without my programmer hooked-up while I had my Q4 installed, and the bike felt worse without the programmer.

^^ This !!

If you have the exhaust done, get a programmer as you'll be losing power/responsiveness with one.
Have you modded the airbox?

I have not done any mods except the header and silencer.. Appreciate the replys....