Hi everyone, No, not clickbait or a typo. My AP has recorded a max FBK of -31.80 recently on my 2010 WRX with ~112k. Saw -30.80 twice a couple weeks ago. All under gentle city driving nowhere near WOT and shifting at or below 3000 RPM. Pretty sure this is somehow related, but this started...

I have a 2018 wrx stage 2 recently i have noticed that under WOT around 5000 rpm the car lurches and hesitates. i can hear minor pops from the exhaust some times. i also am getting frequent feedback knock showing up on my access port. i have replaced MAF sensor. so i have ruled that out as a...