O.k. I couldn't seem to find the definitive answer regarding which intake is "the best".

I want to purchase one really soon, and don't know which route to go.

I'm interested in some real world horsepower numbers that can be obtained from utilizing the produts from Stillen, Injen, and K&N(if it's even ready yet).

Also, where to buy would be great along with ease of installation (I read somewhere in the posts that you have to remove the bumper to put the Injen on which I have no desire to do)

By the way, I have a 2003.5 GM6 Sedan.

Thanks guys!

 

I purchased the Injen for my car, and I was able to install it without removing the bumper cover. It only took about an hour with some help from my friend. I purchased it through ADVENTON.com for about $214.00 plus tax.
I know that the Stllen shows good hp gains aswell as the Injen, but I went with the look factor. When I went to the STILLEN 350Z/G35 day I didn't see any cars with the STILLEN intake, but a few with thte Injen. And when I went on the Dyno, my car showed the highest hp for the G35's for the day (I also have the STILLEN dual exhaust). I don't think that th horsepower difference is really that different between the two, so it's really up to you as to what you want the engine compartment to look like. Do you want it to look custom or more likr the factory look.

<font color=blue>2003 Caribbean Blue Coupe
6MT Prem, Aero, Nav.</font color=blue>[img]/w3timages/icons/cool.gif[/img]