An emissions label is the primary means used by EPA to have manufacturers demonstrate that their non-road engines meet emission requirements (or are exempt from them). … Increasingly, EPA has looked to emissions labels as an initial basis for enforcement actions at the border. How do I get an emissionsRead More →
Because of the strict vehicle laws in California, muffler deletes are not an option. Despite this, you can still get a heartier sound from your vehicle through specialty performance parts such as adjustable mufflers. Do you need a muffler to pass California smog? Will it pass a smog check withRead More →
An engine with excessively advanced timing will run well, but is prone to ping (harmful abnormal combustion) and produce excessive NOx. Retarded timing reduces engine performance, fuel economy and emissions. How do you reduce NOx in a diesel engine? NOx emission can be reduced by primary methods such as retardRead More →