Assuming you mean the K&N GenII intake, then it's a great mod for street-performance, desert running, or trail-running.
However, it's NOT good for mudding in watery mud or for driving through deep water... With the element exposed, and even using the water-resistant jackets on the filters, you risk sucking more water into the engine that with the stock setup.
That's the main reason that I'm thinking about running the Volant intake instead of the GenII.
I put in a thottlebody riser. It gives you more low end..and if you get the poweraid air box replacement kit with it it's supposed to give you more than gen II....so the four wheel shop near my house says so. I don't see very many people running that set though, so it could be bull ****.
The way the intake tube sits on the throttle body it would be impossible to add a spacer because its already sandwiched between the throttle body and the firewall. Check my pics in the [email protected] write up and you'll see what I mean.
I know..you can't add the [email protected] or the airaid intake to the throttlebody spacer. There is different unit that fits with existing air box but eliminates the filter inside and replace it with a cone filter on the side. Like I said I haven't seen this one before until they showed it to me yesterday.
Well, I'm running the K&N Gen II AND the throttle body spacer. The only reason I got the spacer was so that I could keep the Gen II after I installed a 3" body lift. I also went through the same pit that Woody went through about 5 or 6 times (the video of it is on Jason's site) and the engine didn't take any water on. I have to admit, I may have done it a little slower than other trucks just for that reason though. I didn't seem to notice any performance gain by using the throttle body spacer but I certainly did notice the Gen II, although I doubt it was worth 18 hp.
How muddy did your underhood area get? How much mud/water got onto the K&N filter?
EVERYTHING under my hood has a nice coat of mud. The battery, the top of the airbox, the top of the engine all the way back to the distributor, which just managed to stay dry. The entire underside of the hood is coated as well...
If the filter got coated, but kept the water/mud out, then I just may get the K&N...
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