Bypass

Removing the DPF is illegal around Europe but what about a bypass?
Two butterfly valves (when one's closed the other's open and vice versa) allows the exhaust gas to bypass the filter under normal conditions and when the (((inspection))) comes along a little switch redirects again the exhaust into the DPF. If properly hidden the bypass pipe no authority would be able to detect it.

instead of adding random piping and having inspectors asking questions, why don't you just get some 2 v-bands welded in and remove the DPF when you dont want it and bolt it back in when you go for inspections?

pic related

That would be a superior option if it wasn't that the local cops when stopping you might stick up the muffler a probe to detect how much exhaust the car produces.

turns out i cant read.

defeating an emission control device is the essentially the same as removing one. I've heard of guys punching cats hollow and running them on the street. Apples and oranges, but not that dissimilar.

why?

Your cops have nothing better to do than sodomize your cars because you might have farted? That's the most pressing problem Europe faces today?

At least petrol guys can buy a high-flow sports cat? Dunno if that's an option for a diesel

What fucking communist fascist state do you live in?

what?
this is a thing in europe?

Are you really surprised?