9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
Hey all, I have a 07 9-3 2.0. I’m not getting over roughly 3psi of boost.(about halfway up the stock gauge) The car is stage 3 tuned, intake, fully catless 3in exhaust, and kinugawa BOV. I’m used to seeing 18-20 psi. No CEL all vacuum lines and charge pipes are intact. I’m stumped any ideas...