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About 2 weeks ago I bought a 2008 Mazda speed 3 with 184xxxkms. Test drove it and all went well. On the drive home the bov came out of the hose, tightened back up and it has been misfiring in hard boost ever sense. The car has mishimotto front mount Cts4 turbo Hpfp internals Exhaust 3.5 intake...

Hello all, I have a question about my 2006 Mazdaspeed6. When running the stage 1 Cobb OTS tune, my car barley hits 13lbs of boost. Curiously, on stage 0 the car hits close to 16lbs all day! I've read around and haven't found a definitive answer as to why this is happening, but I have some ideas...

Currently running a v3 AP in my 08MS3GT with 81k miles. Trying out up to STG 1 93 tune until I get HPFP upgrade within the month. HPFP actual pressure isn't dropping below 1600 ever at WOT. However actual AFR is running at a 12.2-12.35 with boost at WOT. Stock intake system and everything. I...