September 2004
http://www.dieselnet.com/
Retrofit filters for passenger cars in Germany
German emission control manufacturers have been developing
particulate filter systems for retrofitting diesel passenger cars,
and lobbying to help create a market for such products.
HJS Fahrzeugtechnik of Menden, Germany, developed a "City-Filter"
system utilizing sintered metal substrate in combination with either
active (electric heating) or passive (CRT type) regeneration. The
system costs between €650 and €700, and can be installed on a car
within 45-60 minutes.
The German government has been considering establishing a tax
incentive program for drivers who retrofit their cars with filters.
http://www.hjs.com/main03a.php?id=29
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