k & n fipk
#2
Your stock filter actually filters better than anything and flows plenty of air to support 500 rwhp.. If you still have your stock box and filter you can modify it for the most flow easily.
I did a writeup on the LLY/LBZ Box Mod you can view it here>> https://www.dieselbombers.com/chevy-...LBZ+AIrbox+Mod
For a litle proof on how good the stock filter is compared to the aftermarkets, check this out >> https://www.dieselbombers.com/durama...er+Filter+Test
But if you are dead set on using an aftermarket filter, I personally like the S&B intakes to best.
I did a writeup on the LLY/LBZ Box Mod you can view it here>> https://www.dieselbombers.com/chevy-...LBZ+AIrbox+Mod
For a litle proof on how good the stock filter is compared to the aftermarkets, check this out >> https://www.dieselbombers.com/durama...er+Filter+Test
But if you are dead set on using an aftermarket filter, I personally like the S&B intakes to best.
#4