I went with the raptor 100 for a few reasons.1. I do not plan on doing comp or any major performance mods2. I really do not buy into the whole air separation bit, and have not found any consistent third part data to verify these claims. 3. the raptor has an adjustable regulator, which can be calibrated and recalibrated if need be.4. even if i chose to do any performance mods the pup will keep up with the till i hit the 500hp mark even though it is very unlikely I would attempt that.