Welcome!
I'd suggest the Eibach Pro-Kit for springs

Also, surprised to hear that there's a noticeable difference in straight-line acceleration between the S2K and your Mazdaspeed 3. Are you comparing stock to stock? If so, I would of thought that it would be a dead heat, if not a slight edge to the S2K

 

Well, I'm just so used to having the pull of the turbo that the Mazda felt faster. I had intake, exhaust, chip, and turbo inlet pipe on it. It was boosting 20lbs. so it pulled pretty good.

 

OK that makes sense then....what about stock vs. stock. Based off the stock #'s, the S2K should be faster by a little bit

 

Stock for stock, I would say it's close. There's no top end of the speed 6. At 5800 no power!

 

welcome to s2ki...

 

its the speed 6 not speed 3, that might be confusing you a little bit

 

Actually the speed 3 is a bit quicker than the speed 6. They are a lot lighter.

 

i know, im just saying he metioned speed 3 and thats not what you have

 

Oh gotcha