I was looking through my Marauders and wondering: How could I make a Marauder as stupidly hot as possible without running PPCs while still having some glorious blue spewing out of it? The answer? Quad large pulse lasers. Admittedly, this build is pretty hot and it would probably be more efficient to run 2 LPLas and 5 MPLas, but I personally prefer LPLas in general. You can also rip out the JJs and add more DHS if necessary. Disclaimer: I'm running this build without the 2x bonus from Eliting, so I have no idea how well this will run once that is added on.
I actually changed it up awhile ago and forgot to update this. Been running this build instead. Dropped my engine rating a good deal since I got speed tweak, dropped all but one JJ, and now if I manage my heat properly I can make people very, very sad.