performance mods

Im looking for some info on what types of mods i can make to my 08 mazda 3 to increase HP.

Hey all, first time poster here. Having gotten my CX-5 as my first car, with 155xxx kms on it and intending to stay with it for a good while, I was wondering on anything that could be done to make it a bit more fun to drive. I've done some research, and although I know there are ECU reflash...

I have a great exhaust and muffler shop down the street from where I live. I have used it for the last two Miata's I've had. When I upgraded the exhaust and installed a high flow cat, it yielded more power, response, and better gas mileage. It only cost me $250 for the cat, exhaust, and tips. I...