I agree with your reasons to go with Stillen. One other thing,
Stillen dynos an 11 hp gain on the sedan.

2003 Twilight Blue Sedan 5AT, sunroof, Graphite Leather,
splashguards, GG/DB red 10 wire Hypergrounding kit, 350Z intake duct, Stillen Hi-Flow Airbox

 

The Stillen's cone filter also has the venturi ring inside of it.
The cone filter offers much more surface area for filtering.
The "Howl" it produces is destinctive. I replaced my stock
box with a flat K&N with the Stillen box. The response
is very noticable.

2003 Twilight Blue Sedan 5AT, sunroof, Graphite Leather,
splashguards, GG/DB red 10 wire Hypergrounding kit, 350Z intake duct, Stillen Hi-Flow Airbox

 

smcallis,

For over three months I ran with the Z air duct and K&N drop-in filter. It's a good combination and, because of that, I wasn't in sure I wanted to step up to the Stillen Hi-Flow Airbox. However, after reading the positive reviews from folks like mbarrad, cato and others, I decided to take the plunge.

Stillen's intake kit looks a lot like the stock system. But in fact, it's quite a bit different. The kit includes a heat shield, a velocity ring, and the usual large K&N conical air filter. This setup may be classified as a short ram cold air intake (CAI) system. It offers all the advantages of the Injen long ram CAI, without having the air filter near the pavement.

Both are great systems. Go with the one that "works" for you.

DaveO



99983-Air Inlet G35S Stillen.jpg

 

Thanks to ALL. The info provided in these forums is second to none. Does anyone know where I can buy a 350z intake tube?
Can ya just pick one up at the NISSAN dealer?

 

I'd also like to grab a 350z duct, where can you get them?

 

ncozby & cliverman, Yes the 350Z intake tube is a great mod. I have one and am very happy with the results.
Check HERE for ideas on getting one.

<font color=red>GSM</font color=red> <font color=black>Silverstone Coupe</font color=black>

 

DaveO,
Guess I went for the Un-Stealthy look. Don't get me wrong, Stillens Great. I have their Exhaust. A buddy of mine has the same mods as me. Both G35c 6mt's Except he has the Stillen Intake instead of the Injen(like mine). We took both cars to Commerce drag strip outside of Atlanta, GA a few weeks ago, & out of all 6 runs the car w/ the Injen Intake was 2-4 mph faster & 2 tenths quicker in the Quarter mile. It was funny. He had better reaction times & would leave the line almost every time before me, & then I would catch & pass him 2/3's of the way down the track. In all fairness, his did'nt have the "Z" Tube at the time. We just installed the "Z" Tube on his a few days ago. He says he can't really feel any differance but the Intake noise is louder. We're going back to the strip this Friday Night, I'll let ya know how they match up again ...
Take-Care,
Rick



104492-TubeSmallCarbonFiber.jpg

 

Another Pic...

 

nissanwholesaleparts.com 1-800-876-7496
Jayson shipped mine out today (9/16), they just got some in.
Tell him your from g35driver
$75 plus shipping, I'd call ASAP!

 

Duelling G35c6mt's, one w/ Stillen Intake...one w/ Injen Intake...



104508-SmallDragRickV.MarkStart1.jpg

 

RugRatCoupe,

There's no doubt the Injen's a great system. It looks like you've proved that your car was substantially quicker/faster than your friends G on that day.

Stillen only claims a 5Hp increase for the Coupe (11Hp for the Sedan). Injen claims 10Hp gain.

I'm sure you're aware of the all the other possible variables. What other mods do both cars have? Did I spy a Nismo MAF Sensor with your Injen System? If so, does the other car have the same MAF Sensor? Can you tell us a little about it?

Look forward to the results of your next shootout.

DaveO

 

Where did you get the Nismo MAF Sensor?
The Injen claims 10Hp v. Stillen 5Hp for G35C?
Well, I guess that makes my choice easy.

 

remember, the injen replaces the tubing all the way to the plenum. The stillen still still uses the stock restrictor tube and I bet, the Z intake tube will add another 5hp.

2003 G35 Coupe 6mt Diamond Graphite
AIM= bkchang79