2015 Ford Super Duty Power Stroke Diesel Gets Distinctive Cobra Head Downpipe - autoevolution
That's 40 hp and 80 lb-ft (81 Nm) more than the 2014 Ford Super Duty with the Power Stroke turbo diesel V8. The competition stacks up as follows: the 2015 Chevrolet Silverado HD and sister model GMC Sierra HD benefit from a 6. 6-liter Duramax with... Another highlight feature is the so-called reverse-flow layout that places the exhaust inside the mill's V-shape, while the air intake is positioned on the outside of the V. This advanced design shortens the airflow from the exhaust to the... Well, its job is to get the hot exhaust gases from the turbocharger out with as less obstruction to the exhaust flow as possible, which aids with power delivery. The cobra head design acts like a widened, banked turn, allowing exhaust gases to flow smoothly through the 90 degree turn from the engine to the aftertreatment system and reduce backpressure. “It turns out that a downpipe shaped like a cobra head is the ideal design for air flow and breathability, which we validated through thousands of miles of durability testing. Source: www.autoevolution.com
