Some exciting things are happening for this new Titan! In addition to the projects already planned, we want to develop a performance intake that will squeeze out a bit more power from this 5.0L V8 Cummins Turbo Diesel. We managed to get an accurate dyno reading with a few adjustments, which we know a few folks have been struggling with on this truck, but more on that later - let's dive into the stock intake!

Stock Nissan Titan air intake

Throttle body from the stock Nissan Titan air intake
Dissection of the Stock System
This turbo inlet is located at the top of the engine. The inside diameter measures right around 3.5 inches; the intake tube has the same inside diameter as well. The airbox grabs its air from inside the fender on the passenger side of the engine bay. Check out the opening in the image below.

Fresh air scoop inlet
That's a pretty sizeable opening, so we will definitely incorporate that into our prototype design for an airbox. Speaking of which, let us take a closer look at