L322 Making the L322 TD6 Quieter

I know first responses will roll in "go buy the 4.4L petrol". But I will stick with the diesel.

First two things that come into my mind - do the fan conversion from viscous to electric. It really drives me nuts the car doesn't even need the extra cooling but the fan keeps clutching and making unnecessary noise to a level where people look at me driving it because that is just how loud it gets!

Any advice and part summary would be appreciated.

Another thing would be to do remap mainly to get nicer M-P giesels and running at lower RPM during normal driving. I do not want necessary the extra power and torque because I don't really want to upset the gearbox in any shape or form. The car doesn't get floored of the lights, no towing and funny enough I try to avoid hills in this luxury offroader haha! I want to achieve lower RPM at 30mph lets say.

So these two things should make the car quieter.

Your thoughts?

lowering the rpms could only be done with hardware conversion in the gearbox, transfercase or diffs. allthough, this might give the converter a harder time before lockup, which again would increase wear on this. My only tips for quieting the car is choose the right tires, check your airpressure and perhaps changing the fan. I have not heard my fan kick in yet, but I live in Northern Norway, so not the highest temperatures here. only very seldom does the temperature reach the "straight up" position on the gauge, which i assume is 88/90 degrees C.
I have so far reached about 33mpg on my car by choosing tires without rough patterns and checking the airpressure, and noise is drag.

Thanks Ninjatriks I think I will start at the fan conversion. 20mph driving in traffic and start stopping gets the fan enabled then it sounds like a battle of Normandy.