can i get rid off the speed limiter w/o having to replace ecu??

Ok, you only might have a limiter if you have a GXE. The only way to know for sure is to try to go over 120mph.

If, you do have a limiter, follow the link to "Ben's ECU Mod" in my sig.

Ok, now I saw in your profile that you have a 98 SE. You dont have a limiter anyway, so dont worry about it...