Yea, I guess my answer wasn't clear enough. I meant that going with a bigger surface area filter won't hurt his performance, but too big of an intake pipe could. Seems you explained it better.

OP if you're worried about water maybe you should get one of those water resistant prefilters.

 

still looks like you could get some rain water in there, try these

DryCharger® - K&N DryChargers® are manufactured from a durable polyester material and are pre-treated with a proprietary hydrophobic process designed to prevent splashes of water or mud from saturating your K&N air filter,

Just find one that fits

 

Well, if you can't close the hood ...

 

Kay9, what intake manifold is that?

 

Thanks for the responses all. The hood clears. First time really cruising with the new filter today and i never knew how folks tend to hear the suction of the intake over all the other noise elements but i must say that i now know.

There is some wiggle room to move the filter up the tube 2-3 inches but may not worry about it as the Monsoon Rain has been pretty bleak this year and the truck not being a DD.

 

6.1 manifold.

 

Is there a big improvement over the factory 5.7 manifold?

 

Manifold itself is hard to say since i did a bunch of mods the same time. Also went from a top end setup to a power band that i can use on the city and highway since i mostly stay below 70.

Overall though she moves hard and can hole shot like no other.