9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
Hey guys, so I own a 2003 9-3 2.0T Arc. Earlier this year I had a stage one tune made by Mike at MPS (great guy, super helpful with support). Car ran great and was making about 15 psi of boost (after fixing several vacuum leaks).
Lately though I've been peaking at about 10.6 psi on average...