The MK4 is common rail injection, they are the "PD" Engines, much faster and quieter, with variable vein turbos, and yours will never be like a PD engine, You could remap your TDI, that optimises the engine a bit, takes out some of the lumps and bumps, and lots of sound deadening, if you muffled it enough you might just get it to sound and feel a bit like a PD! sadly the reason diesels sound the way they do is partly due to the way the injection works, and newer diesels work differently.
Or, slap a K&N On it and make it super loud... like i did
