two states emission test data plus other information, before you pay for hardware to get up to code if your state tests for emissions or if you just would like your tailpipe to emit cleaner hydrocarbons please visit.
-- Edited by dbdeland on Friday 8th of October 2010 11:05:43 AM
Hydrocarbons coming from the exhaust of an Auto-Rx Cleaned Engine are clean and green (you might not care however that car loaded with kids in cold weather and driving behind you thank you.