Ok we have now confirmed 3 cars that have pressure holding issues at high boost and near redline. We are getting new o-rings for the the end of the regulator (small o-ring at the very tip of the FPR) that will fix the problem. This is what you could consider a recall for the FPR mod to make sure it will work with everyones car. Now for those of you that have already purchaced them this part will be free but it will take a week or 2 to get the o-rings (they have to be custom made, damit). There is no reason to "freak out" about this due to the fact that there have only been 3 out of 50 that have reported a problem with this (one is a local car that I found) it will not be something that is wide spread it is just me making sure that the mod is "perfect" for all the srt-4 owners, thanks.