What is the difference between paying for one of these kits and doing the mod yourself? I put a K&N filter on myself, then using a guide I read under the Technical Articles section of this site, I modified my intake to allow more air in. Instead of making my own seal using a ring of metal, I just used a hacksaw to cut the stock intake tube about 3" from the end that fits into the clamp (just far enough to keep the posts that mount into the bracket in the engine compartment.) Seems to me this was a lot cheaper (free!) and produces the same results, correct?

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-'97 F150 Super Cab XLT long bed, 3rd door, 4.6L 5 spd, 3.08 rear end
-Added:
Aiwa CDC MP3 stereo
Sprayed in bed liner
Bug Deflector
Ford Running boards
DRL's
K&N Filter
No Door Chime
Radio Delay
Fog Lights on w/ hi or low beams or parking lts.
Reese concealed hitch
Folding rear hitch step w/ attached brake light.
Pace Edwards Roll Top cover