vitara brake servo upgrade

Hi
My swift gti brake servo is leaking, so instead of just replacing it I was wondering if I could upgrade it. I've heard the vitara servo is a straight swap. What are the benefits? Which version and year vitara servo is it? do I need the vitara master cylinder or can I just put the swift one in?

I have the same problem and would also like to know the same, sure I heard the crx is a close match.

Come on guys! Ben let me know if you get any info on this

So does the crx one fit and are there any benefits if using it?