As long as you have a good muffler (or two) it's not a problem. The turbo breaks up most of the drone already.
Here's my current exhaust
Components:
1) Exhaust manifold junction,donut,flange: cut off
a MB611506 downpipe (I went for aftermarket as original was a bit expensive to chop off just the end!). MB611506 is a 2.5" junction from a Pajero, but still bolts to the Delica's exhaust flange. I might have had to grind out the bolt holes, so do a test fit before final painting/coating/assembly.
2) 2.5" 45 degree exhaust pipe bend.
3)
three-bolt 2.5" mild steel exhaust flanges and
gaskets. Disassembling the exhaust allowed the ceramic coating to get right inside the Moroso muffler and downpipe, and will make for easier repair in future.
4)
Moroso spiral flow 2.5" Disrupts pressure pulses that can cause resonance, but doesn't clog up or burn out like a glasspack.
5)
A tiny oval stainless steel wool packed muffler. Dimensions 300mm long, 200 wide, 100 thick. Reduces the drone and clattery harshness, fits in the gap between transmission and sill. The pipe is
perforated (plain holes), not punched in (louvered baffle) holes. Louvered baffles catch soot and clog up the packing real fast.
6) 2.5" exhaust pipe bend (45 degree? I think?) with the end cut off on a jaunty angle.
Exhaust hangers: fabricated from steel rod, but I used genuine MB376594 rubber donuts.
The middle hanger (near 3) connects to the van's existing hanger bracket.
The rear hanger (near 6) needed a new bracket fabricated and attached to the sill:
The sill panel is fairly thin, so there's a reinforcing plate on the inside. You can get to the inside by pushing the rear air vent duct out of the way, as it's only thin flexible plastic.
