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DPF delete is removing the dpf (do they leave the shell - but just take the filter out?) and then reconfiguring the ECU? This is illegal right? Is it not picked up at MOT - or do you need a compliant tester? No chance I'm doing it - just curious - honest!
As I've got the lowest tune, and the smallest van in the model line it feels like there should be more in there! Might try asking around.
Scrabble-
Yes definitely most likely illegal, they gut everything out and weld it back up. Most people do it out of warranty as a clogged DPF can cause very expensive repairs on certain engines. I'm not 100% on if its an instant fail of MOT as it depends on your cars emissions I guess. Not advocating but its fairly widespread!
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I'm sure you can get a fake empty DPF that looks like it is still there, much like a sports cat. TBH if you sell the DPF as well it pretty much pays for the work involved with changing it in quite a few cases. I think mine may be going soon.
Mine is mapped and my MPG hasn't dropped. It's probably gone up on a run. Never heard anyone say a remap has adversely affected their MPG.
Haggis
Tom13
If you ask on any car forum the stock answer when you have an issue is "DPF delete". Same with other issues like AdBlue.
In terms of a remap, it's worth asking a reputable garage. Supposedly remaps for fuel economy are more common outside of the UK. It makes sense that a car manufacturer would tune the ECU to work across multiple countries with various emission laws, so there is probably a little improvement hiding in there. I think there is a stigma with a re map, probably not helped by the marketing (stage 1, stage 2 etc).