[peaceman]

im getting ready for my rebuild and I was wondering I have a K7N direct replacement with a K&N powerlid would the gains be worth scraping my $170.00 setup to go with a proflow?

 

[03Rappy660]

The stock replacement helps, but the pro-flow allows more air at a faster rate. I think you should go with with the pro flow and still run the K&N powerlid or no lid at all.