[heavy-chevy]

i got a full intake just because i like how they look/ it was a good deal on ebay, otherwise i would've just cut the box and put a drop in and it would do the same thing. afe and aem make the best filter imo, but k and n is good also. as fas as exhaust just getting rid of the cat will make the difference, if its an lb7, you wont see as much gain since they already have no cat. both mods are mostly just for sound if you ask me, the slight mpg/performance boost is just a bonus.