Hello everyone, I have a 2010 Mazda3 i Sport 10th 103k miles that is having problems when accelerating, or running at speed around 3,000 rpm. There seems to be some intermittent hesitance and power drop-out, as if the car is momentarily saying "No, I don't wanna...". Even my 15yo noticed it...

I came VERY close to buying a 3 (iGT 6MT) this week. I went in for yet another test drive. Usually I'm too hasty, but not this time. Some things still bug me about the 3, and Mazda. I tested an i Grand Touring. I was going to wait for an s-trim with a manual, but I got tired of waiting. I...

for all practical purposes my mods on this dyno are a custom test pipe, corksport sri, and an ETS TMIC. i have a Piasini tune set at a 20psi spike and a 18-19psi hold and both runs are done on the same tune, one pre fuel pump one post fuel pump. its still a rough tune and will need some...