I'm getting mixed feelings between either just putting in a whole new axle from like Napa or something or just buying a CV Boot and fixing that. My inner CV boot is ripped

 

Kragen has lifetime warranty..

 

Napa too

 

depends on how long the boot has been ripped, and how much dirt got inside.

 

+1 If money's tight go ahead and replace just the boot. But save your pennies with the expectation of replacing the whole axle.

If you're paying someone to do it definitely get the new axle.

 

If you get dirt in the boot, it'll grind down the axle. Also the Kragen ones are significantly smaller than OEM, I regret getting them, and I thought it was the wrong part when I went to put it it. Apparently they have a life time warranty, but only up to one or two replacements.

 

I compared the kragen axle to my oem axle-I have a WRX though, not an sti. The kragen axle were the exact same size as the oem axle.

to the op: It's pretty messy to replace the boot, grease gets everywhere. and like some of the others have said, depending on how cracked the boot is, dirt might have already got into it and maybe sooner or later you might have to replace the axle, but maybe not.

I'd recommend just replacing the entire axle with an EMPI axle, Turninconcepts sells and uses them on their cars and have had a good thing with them.