some say you may loose your roof rigidity , but then it's all boils down to individual preference ...
and some even say it's illegal and would be stopped by JPJ ...not sure about it ...
try scounting around the you'll be able to find one ...i know one from kajang , but i've neve done any work with that particular person ...
same time better find out for all the conseqences of installing a sunroof ....join us for TT perhaps and have a chat before you plunge into this thinggy