Nice. The sliencer on my ML55 is utterly massive too and my also is possibly quieter than I would like. This may be something for me in the future. Thanks for posting. Want to get my dual exit tips on first though.
Yes, I'd be curioius to see that. By Silencer you mean a 'Resonator' - where is it located on the truck ?
And I assume the very rear mounted unit just ahead of Rear bumper with the Dual Tips, that is your Muffler, yes ?
If the resonator is more towards the middle of the car, perhaps just a simple y pipe like a 2 - 2.5" to single 3" replacing it, and just maintain the rear muffler (assuming it's in good shape)
I bet those rear mufflers don't come cheap ! There's lots of options to explore...
Cheers - David in East Texas