white brothers e series on my fourtrax 250 what you think what do i need to know for this any addvice

 

I assume you're talking aboug the e-series universal, right? It may bolt up, or may require some quick mod work, but shouldn't be too hard as long as you get the right size for your headpipe. Then, as you probably know, would have to jet accordingly for the pipe. From what i've heard, the e-series is supposed to be one of the best slip on's out there, let us know if this works out for you, I may do the same on my recon.