Hey guy's, it's been a while since I have been on here. I ended up buying a bass boat, and pretty much car was sitting in garage, and driving it every now and then. On Christmas this year, me and the wife decided to surprise my son, and gave him the keys to my car for him to own. (yea, wish my parents gave me a christmas gift like that...LOL) anyway, at the time we gave him the car, it had 40,100 miles on it and running fine. In the last month or so, it has lost power, and boost is low. On the tune I have in the car, the waste gate was always very loud when it exhausted, which I loved (cause it sounded cool..LOL). I took it for a ride the other day, starts fine, idles great, and seems to run very smooth, the first time you get on it, boost comes up to like 12psi, and you cannot hear the waste gate anymore, , after that first time, boost will top out about 8psi, with the tune, it would always get like 20psi. I'm not sure where to start looking for the problem. Like I mentioned, car seems to run great, no idiot lights on dash are on, no codes or anything come up. Car is a 2013 Taurus SHO, tuned/ Corsa exhaust, w/Meth, and has like 43,000 miles on it. Thank you for any info. Rich