All Makes BMW Audi Chevrolet Ford GM Honda. ... 2017 Silverado HD gets a ram-air hood to feed the Duramax. Ram-air is not just for Pontiacs anymore. By David Gluckman. Jun 3, 2016 9:15 AM EDT.

Cervini's Auto Designs has two hoods for the '97-'06 Jeep TJ Wrangler. The three-inch cowl hood provides plenty of clearance for engine upgrades and cools under hood temps. The Ram Air Hood ...

The 2017 Chevrolet Silverado HD will feature an all-new patented ram air intake system to bring down engine temp and sustain prolonged performance.

The scoop also enables a "ram-air" effect, allowing it to funnel greater quantities of air into the engine when the truck moves at speed. 2017 Chevrolet Silverado 2500HD ...

2017 Chevy Silverado HD Trucks Getting New Air Intake System & Hood Scoop. Chevrolet’s all-new patented air intake system will drive cool, ... a ram-air effect helps pack more air into the ...

New for the 2017 model year, the intake is marked by a hood scoop and is said to provide most of the air—around 60 percent—going into the engine. The rest comes from a dry location in one of ...