Installed stillen gen 3 and ...
 

Was dissapointed.
They definitely tax the living crap out of your mid-low end power.
They do improve a little bit the last 1500 rpms, but it's a crappy compromise.

Aside from them looking nice under the hood, I would say $520 not well spent.

If you guys come across feedback for other products that you think we can save our money by not buying the. BecauSE of the benefit/cost factor, please share!

Thanks in advance

Did you reset the ECU after the install?

Wow, I just installed mine, and I think it was an improvement over stock...I mean, butt-dyno wise...

you have to wait a few days for the ecu and the engine to break in the new intake i didnt notice much at first but after a few days it really began to show. so give it time

The G3 has produced some widely varying numbers. When Mike Kojima tested it on an automatic (bumper on) it lost power right up until the top end when it gained a little. When he tested it on the manual, it gained about 5 hp across the board with a gain of 9 at the top end. When the test was done with the bumper off he added another 3 or 4 in the mid-range and 6 at the top end.

I did reset by unplugging the ecu while installing the intake.
Mr. Kohima was prob right.. The car feels a little better right at the end , but not below that .. Taking away from responsiveness.
I still have stok cats and exhaust, so maybe the car is choking up?

do you have any bogging issues when trying to accelerate sometimes? i feel sometimes that my engine bogs under fast acceleration

From what RPM are you starting to accelerate? Keep in mind that you really need to wind this engine out... so if you're mashing the gas from under 4-5k it probably feels a little sluggish initially.

To be honest I'm rather surprised at your findings. I mean I can only go by what I am feeling and have seen with my car though.

From the Dyno sheet, mine is line ball from the beginning to the end where it makes 16hpatw, compared to stock. This was with "NO" resetting of the ECU what so ever either. Basically we did a power run before, installed, then another run.

As for responsiveness (besides some slight aural gains), it's much better for me. I do feel for you that it hasn't given you the same benefit that I have gotten though. BTW both runs were done with the bumper on, honestly not much point otherwise.

ok so is this a mod to buy or not or wait out and buy something else for now...lol. I just got $1000 extra from the army and i was going to order this tomorrow buy it straight from the dealership cuz they r giving me a deal since i just bought a car from them. Also how do u reset the ecu? just unplug the battery?

As a car enthusiast, not as a sales associate, I would consider buying HFC for the 370Z before cold air intake kits.
It's about the same price, if not more, and the install hours are about the same too because you have to remove the front bumper.
Also, HFCs been proven to add 10+hp at the wheels.
Thats just me... :)

^which do u think I would feel the most difference vs. stock: HFCs or the stillen G3 intakes?

HFCs by a good margin.

The idea behind intake and exhaust mods are to move more volumes of air efficient in and out.
If intake and exhaust mods were done but OEM cats were left on, the OEM Cats would be acting like a kink in this system.
You will see definite improvement of whp gains after the HFCs.

Because of 370Zs dual intake system, compare to single on 350Zs, the intake kits are now about par with HFC, sometimes even cheaper.

It's your call, if you buy HFC, you'll eventually mod your intake system anyways. :happydance:

Either way, gaining HP is better than not gaining any.
Catch 22, in a good way...

Very well said :iagree:

Before: Max = 291.7whp. My only mods at the time were the Stillen cat-back exhaust and the Berk HFCs.

http://www.the370z.com/members/semte...1467494cd8.jpg

After: Max = 306.4whp. (Added the G3 intakes and re-dyno'd 10 days later.)

http://www.the370z.com/members/semte...re-14-7whp.jpg

Net gain = 14.7whp.

and dyno dynamics read low too

Agreed. And that's why on that very same day, I went and did a dyno on a DynoJet, just to get an idea of the difference in readings between DD and DJ. ;)

DynoJet results, for comparison: Max = 321.3whp

http://www.the370z.com/members/semte...d-321-3-dj.jpg

Video:

YouTube - 370Z Comparative Dyno Results

BOSS! just got my g3s in. installing them when i get back home

^^
Those are some good numbers!!!!


Does anyone have Dyno graph with G3 alone?? (Not from Stillen website please)

You have asked and you shall recieve. Pretty much bang on with semtex with a net gain of 15.3hpatw. Also done on a Dyno Dynamics, I'm not sure about getting another 30hp with the exhaust though. Semtex did you get a baseline run done at all?

You got the same response here as in my pm. I got gains everywhere honestly the car felt better overall. Like someone said, it works better when you free up the exhaust too as the freer flow from the intakes has to go somewhere.

I just bought and installed G3 intakes today. I do feel quite abit of a increase in power...especially as the rpms get higher. :D

cant wait to get mine put on :tup:

Are you an RCD or Strathcona at CFB Edmonton ?

No need for an expensive CAI in Edmonton.....EXHAUST OR HFC's maybe. Temps don't get hot enough.

either u lived here and moved to texas or you trained with the boys in my unit. I'm a strat. As for expensive...i guess its expensive compaired to the intake i had on my cobalt but there was only 1 intake..not 2..lol. Like i said to my buddies, by the time i paid shipping, exchange rate, border fees...all that junk would have been the same amount. Regardless of how hot it does or doesnt get, i still wanted the intake. Still havent decided the future plans on my 370z will be...i would like to go TT but iiunno...I also saved my meth kit from the cobalt...can install it on the 370z when and if the time comes.

i can see a gain of 15.3 ....usally any mods that produce 10hp or under i cant feel a difference when driving....with just the intake i can feel a difference.

Im ordering the G3 intakes this week, what should I look foward to in terms of differences from stock?

like stated above...between 10-15hp...i felt a nice increase from stock. You can hear a difference also, i didnt at first but now as i listen i can hear the air being sucked in.

^ Is is alot louder from stock?, I am excited to install them when they come, I really wanna feel the difference that everybody is talking about

its not crazy loud. Might be different to other people but to me no, im not used to having a N/A car...once i installed my intake on my Cobalt SS Supercharged, all u hear is the supercharger whine. Now that i have a N/A 370z...different feel, different sound...sound increases but not alot, u will hear a whirling sound i guess u can say.

I installed an intake on my 07 civic Si when I had it, so Im used to the intake sound, the sound is not a problem at all, I like the sound and want it to be alil louder, lol. Vs stock did the power gain surprise u?, in a good way of course ;)

actualy it did surprise me...usally intakes make 10hp or less and i dont notice any gain at all while driving. I guess its cause there is 2 intakes i notice a gain in my Z.

just a question, how can you get TRUE 330 wheel drive hp...
I mean, stock is 330hp at the crank, so should be 78-80% at the wheels: TRUE 250-260 hp at the wheel should be good.

How can you get more 80-90 hp at the crank with just exhaust, intake, ecu tuning???

Just wondering.

OEM exhaust is pretty stuffy, and the OEM air box design - while it flows pretty well, can be improved on with the larger design / less turbulence from the G3 intake.

And, it seems we're losing only about 15-20%.

Stock is 332 at the crank. I've got 330 whp right now (DynoJet). Review my list of mods as well as my entry in the members' gallery section.

Is the car a totally different beast with 330hp vs. Stock?, can u give us ur impressions of the performance?

Review my thread in the members' gallery. I believe my impressions are discussed there. If you have any questions after reviewing the posts, by all means post your question(s) there. (I just don't want to hijack this thread with a discussion about my car.)

Edit: Link -- http://www.the370z.com/members-370z-...blue-370z.html

had my stillen gen 3 installed ,looks great ,exhaust next.cant say i felt any big improvement but will wait a couple hundred miles then chime in.

i just installed mines today and i gotta say, fitment really sucks. stillen should have use the same cone shape filters that the g37's version have. it sounds better, but feels weaker.

The only fitment complaint I have (had?) is that the parts don't seem to line up exactly as you'd expect them to, but, I guess that's why there's clamps and hoses.

Oh, and the breather tube deally's should be longer and/or have a flare to them so you can actually cinch down the hose clamps and have them grab instead of just sliding off as you tighten them down =/