Hello everybody. I just joined the forums and am now interested in making my 2009 mazda3i sport faster. I have done a bit of research on some subjects, but I figured with a forum this specific to a certain car, the knowledgebase must be pretty good

So it seems the first mods many people do is a CAI/RAI and an exhaust. Is this true? I was looking at fujita and corksport intakes. These fairly good quality?

After these are bought and installed, how do you guys get tunes on your cars? I also have a Dodge Charger r/t and tune it via a diablosport predator. What do you all use for the mazdas?

Lastly, I was looking at turbos and was wondering if I could get a stock turbo from a speed3. Are these compatible?

Thanks for all you help. I know I could have used google but there are so many different opinions out there it is hard to get an answer from somewhere that isn't the company's website (Dynoed at +40 hp and +15mpg for $5.00!)

Thanks again,

Boomkapow

 

First things first, unless your car has a manual transmission and you're willing to spend two the three thousand dollars at the very least, you're not going to gain much of anything. As for gaining "+40HP and +15mpg for five dollars"; I can tell you without even looking that it is utter and complete Bull Shirt. Said another way, ain't never gonna happen.

 

It has an auto-shifter (or whatever it's called). And why would I need a manual to gain hp?

And yea, those are the examples that led me to come here so I could get some real input instead of companies outrageous claims.

 

Why a manual transmission? Because the only way you're going to be able to realize any measurable gains is to add force induction to your engine. With that said, the automatic transmission that came with your car will go Tango Uniform in relatively short order if you breathe on your engine with more than three or four pounds of boost; only the manual can withstand a significant power bump and remain reliable (or even in one piece for that matter).

As your user name suggests, if you boost your motor with a typical seven to ten pounds of boost, your automatic transmission will go "Boom-Kapow!"

 

But if u still want some "pep", your basic bolt ons followed by an underdrive pulley and reflash could net you a total of 20whp 35tq....at the moderate price of ~$1300, welcome to the world of modding. Im going to put something into perspective for you, a 2.0 mazda 3 with full bolt ons could manage mid to high 15sec in 1/4mi, a 2.3 mid to low 15sec MAYBE. My buddy in his full weight 94 accord 4 door ran 14.7 single cam 2.2 full bolt-ons, his crx 1.6l ran 15.1 full bolt ons. just giving u a reference where you will stand after 1300

 

my stock 2.3 ran 15.52. so i could see breaking into the 14's but your not gunna get anything crazy

 

into the 14's sure, but not with an auto, and if its full bolt-ons plus light pulley, light flywheel, short shifter, clutch and reflash. but not with just bolt-ons

 

yeah def not with an auto.

im thinking you might be able to break in to 14 with a cai, ecaust, header, pully, and fly wheel. idk if youd have to have a sts and a clutch (but if your replacing the flywheel why not do the clutch too lol)

 

well thats what im saying, flywheel and clutch kit dont qualify for bolt-ons nor pulley

 

yeah tru lol id like to put pullies on my 3 but dont really have the money right now

did you notice a big difference with yours?