I never can find real data when comparing different pipes. Its always by the seat of the pants. I dont care about sound, or bling. I want a pipe that is durable and also upgrades the power curve etc. These are the pipes I am trying to find out on: DRD + quiet insert vs. fmf 4.1 megabomb + quiet insert vs. fmf Q4 megabomb will the 4.1 w/ quiet insert perform differently than the Q4? now that the megabomb can be found in SS I am more inclined to check it out. I know quiet and power is sort of an oxymoron but any suggestions would be nice.