I was wondering if anyone has done back-to-back comparisons between the FMF Powerbomb and the FMF Megabomb on the 2007 CRF250R. Which one has the most performance gains? Which one is the best bang for your buck? Also, has anyone had problems burning holes in the right leg of their pants from the Mega bomb? I have with the Powerbomb on my '04, and seeing as to how much bigger the Megabomb is, it has me curious.