My front and rear bushings are pretty shot . Is there any source to get oem replacement or is it recommended to up grade? Up graded sway bar kit with their aftermarket bushing and such

also. What about end links. If I upgraded the sway bars as a kit front and rear. Is it recommended to do end links as well?

 

Year? Mods? Use?

 

you can get discounted price at mazdamotorsports if you have any results in you attending any typ of race or a member of a racing club? not too sure on the details but its worth looking into

 

If you're not tracking or Autocrossing I wouldn't spend the money for aftermarket sways. Stiffer front sway can sometimes fatigue the front sway bar mounts which can crack. If you absolutely want stiffer sways I'd go Racing Beat and get their swaybar mount brace too. The brace is enough unless you're on R compounds and autox'ing.
Energy Suspension and others may offer poly bushings for the stock sway and endlinks. If you don't have to buy them as part of a bushing "set" they may even be cheaper than Mazdamotorsports bushings, which are just stiffer rubber versions of what you have.