Originally Posted By: rooflessVW
Originally Posted By: m37charlie
Originally Posted By: UltrafanUK
Not another air pollution fan!
Not sure what the legal situation is in the US as it varies from state to state, but removing emissions control equipment is an illegal act in the EU or UK. It often invalidates the insurance policy if it is not approved as an engine modification. You can get an approval for track use but not for public roads from most insurers.
What is the longest lasting most planet threatening emission product?
Soot that falls to the soil in a few hours and isn't an issue in my area?
NOx that quickly decomposes and does NOT form photochemical smaog in my area?
Or CO2 that lasts for thousands of years and threatens to melt the polar icesheets and raise sea level over 100m?
My modification produces 10% LESS CO2 than previously.
NOx and soot are local pollutants, CO2 is a planetwide pollutant. The car is in Alaska, not in London. So I am doing the planet a favor.
Charlie
Removing the EGR and CAT does not effect CO2, if your figures have changed it is due to some other factor or simply a change in the weather. Obviously removing a DPF does change the soot readings, BUT if you read up on the effects of NOX it is involved in the production of fine particle contamination and that does remain in the atmosphere, so it's not just a local issue. It's also bad news for the occupants of the vehicle when it is stationary at idle or the tailwind exceeeds the vehicles speed.
The big issue I have about people that boast about deleting emissions control gear is that you are setting a bad example in a public forum. Most of the folks that then follow your example will fail to declare the modification to their insurance company and many of the cheaper new online insurance providers are very good at finding any way possible to reject a serious claim and undeclared mod's are one area they will check.