ok lets not get crazy just a little help I have a 2003 cdt s/o with a full fass system .I got a little taste on performance when I installed the full fass .better throttle responce.I would like to stay stock except on the air box .would like to have better flow ,filtration,mpg if possible,throttle responce.I been doing a lot of reading from older posts.and would like some up to date info on which is better for me thanks kully

 

They are both good products.
Its basically comes down to which one you like the looks of better.