a question regarding stealth

Really late reply here, but no, some ships have room for 4 modules. If I'm not mistaken though 3 of the best stealth modules should be enough to render most fighters undetectable.

[Hal2003]

Yea 3 modules are working very well, 2 best modules works too, but sometimes you will get some hit. But only for fighter.

At MS is not working as MS signature is too big to hide.