We have a helical twist of stainless steel: we have various sizes, which fit in your exhaust, with a grub stream. The exhaust gases are now in a helical spin, as they leave the car. So the gases are now in turbulent flow – and all the emission react with steam in the exhaust gasses.
1 CO2+H2O->H2CO3 weak carbolic acid
2 NOx+H2O->H2NO(x+1) nitric and nitrous acids. NOx at a static 4 parts per billion in the air you are breathing. Major source natural lightening – wash out of the air by rain. Diesels not even a minor source of NOx.
So these weak concentration acids fall almost immediately to the ground: No child will ever breath them in!
So they run into the sewers, and into the sea – where they fertilise plant life – which will increase life on Earth. All this extra plant growth, will suck yet more CO2 from the air. More fish.
Photosynthesis limits free CO2 in the air to a pre-industrial 2 parts per million. All man's burning of the Fossil Fuels has increased life on Earth – but CO2 levels in the air are a static 2ppm.
So Global Warming was cured 2001, at Sheffield University. So man-made Climate Change was solved 4 years before the idea was devised. By Maurice Strong, a Canadian multimillionaire - who has links to nuclear power. Just such biological rubbish.
It said CO2 would in some way make the weather more extreme. It was published in 2005 – a naturally bad hurricane year. The weather then settled down. CO2 a STATIC TRACE gas. No effect on anything.
The world climate has been cooling for 22 years. Only another 6, until we are back to NATURAL Global Warming. Chernobyl happened in a warming year – and nuclear power published Global Warming being caused by CO2, to distract the world.
Its plant building program makes nuclear power the world's 4th biggest source of CO2. So uranium fission hyper toxic, and very much not carbon 0.
CO2 is formed into plant biomass within 5 minutes – sucking the CO2 from the air. After Fukishima EVERY nuclear plant on Earth needs insurance cover of 100 billion.
Which would make each kW hours cost 2.65 UK pounds. Luckily no such insurance is available, so ALL NUCLEAR POWER ILLEGAL SINCE 1984.