The factory airbox is essentially just that; its a big black box that holds the air filter and attaches to the "velocity stacks", which attach to the throttle bodies of the engine. The airbox itself is basically a bigass ugly black plastic box that holds the air filter. The challenge here was to remove the airbox and replace it with a set of pod filters (below)
|This exotic thing was the factory airbox|
|These pods fit directly onto the throttle bodies, but they also|
eliminate the factory velocity stacks. That's ok, but I've read
the intake air volume becomes more turbulent without the stacks.
Chris told me I was wasting my time and money without upgrading the velocity stacks. The stacks kind of look like trumpets sitting on top of the throttle bodies. Those are like the carburators on a fuel injected bike. The stacks are shaped in a way that draws air into the throttle bodies in an optimal way. I broke down and spent another few hundred dollars on a TPO Parts "Beast" kit, which included custom machined stacks and K&N Pods. After yanking the stock airbox and velocity stacks, I inserted these in and watched the rebuild start to take shape.
The image below is a stock image I ripped off from TPO Parts because I was too dumb to get photos of the build with the new stacks.
Now we are starting to get somewhere. TPO Parts Beast Kit below. Includes new velocity stacks and pod filters.
|This is what replaced the factory airbox|