I think H&S has one over 500rwhp but if it was me i'd keep it stock. as far as im concerned, bully dog and H&S are the same company.
I agree. If you look at their monitors or whatever and the hell you want to call them they are exactly the same, one just has a diff name.
http://www.xtremediesel.com/handsperformanceduramaxminimaxx-1.aspx
http://www.xtremediesel.com/bullydogtripledoggtdieseldownloader40420.aspx
Both look the same to me ^^