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12Guy Fieri pitched Flowmaster mufflers before Food Network fame

We all have to get our start somewhere. These days Guy Fieri is best known as a TV host, restaurateur and (to some) Lamborghini theft victim, but before selling burgers, he was pitching Flowmaster mufflers in commercials.

52Korea may bar new Corvette because it's TOO LOUD

South Korean buyers hoping to stomp on the throttle to hear the thundering V8 of the Chevrolet C7 Corvette have reason to be a little depressed, it seems. The South Korean government has no interest in hearing the 'Vettes angry growl. We're afraid it's just too darn loud.

280Angry Nissan Leaf Driver may make 'Rolling Coal' illegal in New Jersey

This Is What Happens When You Smoke Out A State Rep

It's always a few bad apples who ruin polluting just for fun for the rest of us. That time-honored American tradition of being rude for laughs, otherwise known as 'rolling coal,' might become illegal in New Jersey, if a Nissan Leaf-driving politician gets his way.

456Rolling Coal: America's political divide reaches the roads [w/videos]

Jason Mendelson was driving his Toyota Prius in the right lane of Interstate 64 near Richmond, Virginia, when a white pickup truck with two protruding smokestacks cut into the lane ahead.

13EPA's $9M clean diesel campaign could pay back $117M in health benefits

Diesel fumes are bad for people. But diesel power is good for a lot of heavy-duty work. So, for now, one answer to threading the needle of that little conundrum is to make diesel engines as clean as possible. To that end, the US Environmental Protection Agency (EPA) has announced $9 million worth of grant funds from the DERA National Funding Assistance Program. If the EPA's numbers are correct, that money could be worth something like $117 million in public health benefits.

41This 4.5-minute video of supercars and classics starting up is oddly mesmerizing

There's way more to cars than just about how they drive – any auto enthusiast can tell you that. While the way a car feels is vital, the way it sounds plays a huge role in making it exciting as well. Some cars, like the V12 of a '60s Ferrari, are famous partially because of the fantastic noises that they make when the engine fires. It seems that Nitto Tires understands this concept, because it has put together a video with a wonderful sampling of the startup sounds of a diverse group of pe

53See and hear how the Corvette Stingray's switchable exhaust works

The new Chevrolet Corvette has a trick exhaust system that muffles the exhaust note when the electronically controlled valve flaps inside it are closed, and let's the V8 roar when they're open. The system works its mysterious magic depending on the drive mode and the engine's rpm. Here, Patrick Herrmann, Technical Manager of Chevrolet Europe, attempts to show us what's actually going on in the Stingray's exhaust system to give it its dynamic sound.

52Hear the C7 Corvette's three-mode exhaust

Chevrolet's new, seventh-generation Corvette Stingray is quite easily one of the most highly anticipated vehicles of the year. And as details of the new car trickle out ahead of our first drive of it (coming soon!), we're getting more and more excited.

AddYour car's exhaust can cause, not just trigger, kids' asthma

Stick your head too close to an old car's exhaust, and we're willing to be dollars to donuts that you'll start coughing. It turns out that vehicle exhaust isn't just bad for you until the air clears. All that nastiness has a serious long-term effect, and can even cause asthma in children.

22Engineers putting wasted engine heat to good use: improving fuel economy

Gasoline-powered, internal combustion engines are notoriously inefficient. Some estimates say as much as 70 percent of the fuel's energy is lost to friction and heat. An Automotive News story has engineers saying that only three percent is due to friction. To engineers, that's a huge pot of low-hanging, fuel-efficiency fruit.

10Mullite mineral reduces diesel engine pollution by almost 50%

People looking to maintain their health have long been advised to take their minerals. Will trucks be doing the same thing?

26Watch Hedman Headers build a manifold from start to finish

There's something mesmerizing about The Discovery Channel's How It's Made series. While we couldn't care less about the intricacies of paperclip production, watching the various machines and processes interact is the stuff lazy Saturday afternoons are made of.

60This is what the 2013 Ford Focus ST sounds like [w/audio]

To say that we're eager to drive the 2013 Ford Focus ST is one of the understatements of the year. After seeing lots of photos and videos, we can't wait to get Ford's new hot hatch out on the road, and now, we have a pretty good idea of what sort of aural stimulation the turbocharged Focus will provide while we're tossing it about.

69Traffic jams and exhaust linked to autism, brain cell damage

A new series of health studies may have discovered a link between vehicle exhaust and a range of ailments, including autism, Alzheimer's Disease and more. The Wall Street Journal reports that scientists around the world have conducted studies investigating the impact of exhaust fumes on families living close to highways. The researchers are quick to point out that the results are still circumstantial at this point, but that doesn't make their findings any easier to live with. For example, childr

282011-2012 VW Jetta models recalled over.... excessively long exhaust?!

German automaker Volkwagen is recalling 30,294 of its 2011-2012 model year Jetta sedans for tailpipe finishers that extend beyond the vehicle's rear bumper.

70Is the Utah legislature moving to ban all aftermarket exhausts?

According the SEMA Action Network, a bill has been introduced in Utah that will "ban the use of aftermarket exhaust systems." The organization is urging people to contact Utah Senators immediately to protest the substitute bill (S.B. 106), introduced by Senator Patricia Jones, for the following reasons:

98Hero or Villain? Kiwi bandit filling "boy racer" exhausts with expanding foam

BRRRAAAAP! It's music to the ears of a subset of car nuts. Noisy exhaust setups are hardly a new phenomenon, but the fashion for mufflers that intentionally buzz as much as possible is a more recent development in the pantheon of annoying things others do. Exasperation with the muffler rap has led a New Zealand vigilante to start terrorizing cars equipped with what he or she describes as "boy-racer exhausts" in a written manifesto sent to the Marlborough Express.

45MINI Cooper S recalled for protruding tailpipes, inadvertent tattoos

Click above for a high-res gallery of the 2008 MINI Cooper S

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