[Mike N]

The guts of the DPFs is a ceramic honeycomb similar to modern catalytic converters. The easiest 'removal' process is to remove the DPFS and using a steel bar or similar break up and remove the ceramic then bolt the empty shell back in place. Visually no one will know you removed them. I'm sure you know that you will need a tune or you will get a CEL and still get regens.

 

[Mike N]

Its your car you can do it however you want but Truthfully it's harder to make the replacement pipe. Where are you going to get the VW exhaust flanges from unless you rob them from the DPFs you take off. Just put the sensors back in the DPFS when you reinstall them. The hardest part of the job is getting the hard to reach and heat cycled bolts loose.