Question about mod boards/chips

I just picked up an extra saturn model 2 at a pawn shop and was thinking about modding it. My saturn I have been using for the past couple of years I couldn't mod because of it being a model 1. Anyways, my question is can a mod board/chip harm a Saturn system? I don't wan't to end up installing the mod and then a year later have my saturn burn out.
why don't you think before you post?

if the mod board (which sends data into the saturn.. no acid, no laser beams, no flames, no explosives) damaged the saturn in time, don't you think people here would've been recommending AGAINST mod boards, instead of telling people to get one?