For those living in California or other states that have used the Golden State's smog laws as the basis for their own, modifying the engine of most 1976 and later gasoline-powered vehicles is nearly ...

Emissions testing has become a hot topic in the '90s and will continue to generate more interest as testing is enforced nationwide. You can count on it. For those rodders who have never experienced a ...

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Q I am about to buy a 1998 Volvo S90 with 133,000 miles on it. The smog sticker is expired. The seller tells me it’s only $40 to get a new one. Is it possible that it won’t pass the test? What would ...

My finance's 1998 Honda Accord V6 failed it's smog test. For those who live in States that don't have these types of tests (I envy you!) it's basically a car gets run on a small dyno and they check ...