2017 gmc sierra
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Why Diesel Pickup Trucks Need Extra Vents In Their Exhaust Tips
(Image Credit: Andrew Collins) Even as immense as the new 2017 GMC Sierra HD Diesel is, its fart cannon tailpipe looks as comically oversized as the one on your high school buddy’s mad tight Honda Civic Si hatchback. As you may know, a high-flowing exhaust helps a turbocharged engine make power, but the tips on…