Show Your Support Become A Premier Member


Activity Stream: Show All | New Threads | New Posts | New Pictures | Popular Threads | Lonely Threads | Only Vendor Threads | New Picture Comments | New Profile Comments |
Go Back   G35Driver > Tech Area - V35 > Engine, Drivetrain & Forced-Induction > Reviews
Sign in using an external account
Register Forgot Password?
Search

Welcome to G35Driver.com!
Welcome to G35Driver.com.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join G35Driver.com community today!


Reply
 
 
 
submit to reddit
 
Thread Tools Search this Thread Rate Thread Display Modes
  #1  
Old 05-11-2006, 11:36 AM
Registered User
Points: 5,934, Level: 49
Points: 5,934, Level: 49 Points: 5,934, Level: 49 Points: 5,934, Level: 49
Level up: 92%, 16 Points needed
Level up: 92% Level up: 92% Level up: 92%
Activity: 0.7%
Activity: 0.7% Activity: 0.7% Activity: 0.7%
Garage is empty, add now
 
Join Date: Sep 2005
Posts: 36
Thanks: 0
Thanked 1 Time in 1 Post
iTrader: (2)
Another Stillen Hi-flow Intake Review

I received the Stillen airbox in the mail a few weeks ago. Got it for around $200, which seems to be the standard. When I opened it up, the K&N filter looked very top quality, but the box itself seemed kind of cheap. I was worried.

And then I read all the posts from people with install troubles, especially with that M6 bolt.

So when I finally got around to doing the install, I opted to just leave the M6 bolt out of the equation. I did everything else that the directions recommended doing, just left the M6 bolt off. Some other people did the same thing, and they said it worked fine, and so far it's been 100% fine with me as well.

Without that bolt to worry about, the install took me about 35 minutes. For you do-it-yourselfers out there, the most complicated thing I've installed on a car up to this point is the Crawford plenum. So if you hash through Stillen's horrible direction sheet, you'll be okay.

Prior to this mod I had a Crawford V5 plenum and a z-tube on an otherwise stock 6MT coupe.

When I started the car with the hood up, there was no sound difference at idle unless I got REALLY close to the airbox and listened to the slight extra intake hissing. Then I got in the car and revved it a few times, and there was the standard intake suck after a sharp press on the gas pedal. It sounded just like any other intake I've heard, which was actually a good sign because I've had good experiences with installing intakes on previous cars.

Then I took my first test drive (windows down). In normal, non-spirited driving, there is very little if ANY difference in sound between the stock airbox and the Stillen airbox. When I floored it in a higher gear (say... 4th gear @ 30 MPH), I could tell that something different... something a little deeper... was under the hood. But it wasn't a huge difference - probably not noticable to anybody who doesn't REALLY listen to the sounds their car makes.

But then I floored it to redline through a few gears. I was absolutely shocked at the difference this airbox made. In the upper half of the RPM range (say... 3500-6500), this thing is SO LOUD. My VERY FIRST thought was that the cabin of the car seemed to be FLOODED with sound when I was really pushing hard. It was pretty much only when I floored the car in the upper half of the RPM range, but the difference was HUGE. I absolutely love it - it takes the mechanical-sounding, relatively quiet engine noise and turnes it into a deep, wailing that seems to come from everywhere.

I didn't take sound clips to compare before vs. after thinking that the difference wouldn't be this huge, but I should have.

Also, after I installed the Crawford plenum on my stock car, there was a difference in PERFORMANCE but not TOO much difference in sound. It got a little deeper and had a little more aggression. But the Stillen airbox, on the other hand, really enhanced the sound a lot.

You can still hear mainly the exhaust at low RPMs. The exhaust still has that burble at 1500 RPMS and still has that nice wailing at 3300 RPMs in normal driving, but once you get on it, the combination of the Stillen airbox and the stock exhaust blend perfectly to give the impression that the sound is screaming at you from everywhere.

To me, the sound alone is worth the $200, even if there is little-to-no performance gains. It TRULY made a huge difference in the sound. The car sounds awesome.

Let me know if you have any questions. -Phil
Reply With Quote
  #2  
Old 05-11-2006, 11:48 AM
Andy2434's Avatar
Super Moderator
Points: 28,333, Level: 98
Points: 28,333, Level: 98 Points: 28,333, Level: 98 Points: 28,333, Level: 98
Level up: 99%, 17 Points needed
Level up: 99% Level up: 99% Level up: 99%
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Garage is empty, add now
 
Join Date: Apr 2005
Location: S.F. Bay Area
Posts: 11,717
Thanks: 0
Thanked 1 Time in 1 Post
iTrader: (6)
Phil,

Glad to read that your Stillen HFAB install went smoothly. Hehehe . . . Have you stomped on it in the lower 3 gears at 3.5k to 4k? Enjoy!

Edit: Are you running the Stillen HFAB with an OEM intake tube or with a Z tube?

Last edited by Andy2434; 05-11-2006 at 12:03 PM.
Reply With Quote
  #3  
Old 05-11-2006, 12:00 PM
Registered User
Points: 8,460, Level: 62
Points: 8,460, Level: 62 Points: 8,460, Level: 62 Points: 8,460, Level: 62
Level up: 4%, 290 Points needed
Level up: 4% Level up: 4% Level up: 4%
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Garage is empty, add now
 
Join Date: Feb 2005
Location: Edmonton
Posts: 652
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader: (13)


Looking forward to installing the Stillen high flow airbox myself today. Hope I can have the same results.
__________________
2009 Satsuma 370 Sport coupe arrived July 23/09
Reply With Quote
  #4  
Old 05-11-2006, 07:51 PM
Registered User
Points: 5,934, Level: 49
Points: 5,934, Level: 49 Points: 5,934, Level: 49 Points: 5,934, Level: 49
Level up: 92%, 16 Points needed
Level up: 92% Level up: 92% Level up: 92%
Activity: 0.7%
Activity: 0.7% Activity: 0.7% Activity: 0.7%
Garage is empty, add now
 
Join Date: Sep 2005
Posts: 36
Thanks: 0
Thanked 1 Time in 1 Post
iTrader: (2)
Quote:
Originally Posted by andy2434
Phil,

Glad to read that your Stillen HFAB install went smoothly. Hehehe . . . Have you stomped on it in the lower 3 gears at 3.5k to 4k? Enjoy!

Edit: Are you running the Stillen HFAB with an OEM intake tube or with a Z tube?


Yeah I've definitely stomped on it to redline through all the first 3 gears. It really is amazing to me how loud it gets when it's floored.

And yes, I'm running it with a z-tube as well as a Crawford V5 upper plenum. Only other mods I've got.
Reply With Quote
  #5  
Old 05-27-2006, 09:39 AM
cato's Avatar
SouthernComfort Moderator
Points: 180,444, Level: 100
Points: 180,444, Level: 100 Points: 180,444, Level: 100 Points: 180,444, Level: 100
Level up: 0%, 0 Points needed
Level up: 0% Level up: 0% Level up: 0%
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Garage is empty, add now
 
Join Date: May 2003
Location: Sugar Land,Texas
Posts: 3,653
Thanks: 0
Thanked 2 Times in 2 Posts
iTrader: (7)
When I take mine off to clean it, I replace it with the stock air box for a couple of days to let the oil clear off the cone filter. Oh how I miss the Stillen HiFlow when it is off. Can't hardly wait to but it back on. AND.. I never noticed a gain in HP or torque when the stock airbox is back on. It is a myth that the Stillen HiFlow causes a loss of torque. I just love it!
__________________
03 TB 5ATS: SUSPENSION: 350Z springs/shocks&struts GTSpec frnt/rear tie braces Stillen adjustable sways and FSTB 235/50 Michelin Pilot Sport A/S+ on 17X8 +43 18lbs 5Zigen wheels with 6-piston Wilwood BBK SS brake lines EXHAUST: Coupe mid-pipe+HKS Sport muffler INTAKE: K&N+ZTube MD 3/8" spacer
Reply With Quote
  #6  
Old 05-27-2006, 11:06 AM
Registered User
Garage is empty, add now
 
Join Date: May 2006
Location: Texas
Posts: 139
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader: (0)
Quote:
Originally Posted by cato
When I take mine off to clean it, I replace it with the stock air box for a couple of days to let the oil clear off the cone filter. Oh how I miss the Stillen HiFlow when it is off. Can't hardly wait to but it back on. AND.. I never noticed a gain in HP or torque when the stock airbox is back on. It is a myth that the Stillen HiFlow causes a loss of torque. I just love it!
I sure like my Stillen CAI and 350Z air tube. I also noticed an increase in power with no loss of low end torque.
Attached Thumbnails
Another Stillen Hi-flow Intake Review-engine-9-26-03.jpg  
Reply With Quote
  #7  
Old 05-27-2006, 11:55 AM
Andy2434's Avatar
Super Moderator
Points: 28,333, Level: 98
Points: 28,333, Level: 98 Points: 28,333, Level: 98 Points: 28,333, Level: 98
Level up: 99%, 17 Points needed
Level up: 99% Level up: 99% Level up: 99%
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Garage is empty, add now
 
Join Date: Apr 2005
Location: S.F. Bay Area
Posts: 11,717
Thanks: 0
Thanked 1 Time in 1 Post
iTrader: (6)
Quote:
Originally Posted by cato
When I take mine off to clean it, I replace it with the stock air box for a couple of days to let the oil clear off the cone filter. Oh how I miss the Stillen HiFlow when it is off. Can't hardly wait to but it back on. AND.. I never noticed a gain in HP or torque when the stock airbox is back on. It is a myth that the Stillen HiFlow causes a loss of torque. I just love it!
Cato,

Thank you for the excellent idea.
Reply With Quote
  #8  
Old 08-09-2006, 11:36 AM
Registered User
Points: 8,171, Level: 61
Points: 8,171, Level: 61 Points: 8,171, Level: 61 Points: 8,171, Level: 61
Level up: 7%, 279 Points needed
Level up: 7% Level up: 7% Level up: 7%
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Garage is empty, add now
 
Join Date: Apr 2004
Location: North Jersey
Posts: 303
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader: (0)
Send a message via AIM to Lucino
aside from the air filter, I still don't see any difference between the stillen and the stock intake, what's making that loud sound? the cone air filter? does the JWT sound just as loud as the stillen?
Reply With Quote
  #9  
Old 08-11-2006, 10:53 AM
Registered User
Points: 9,480, Level: 65
Points: 9,480, Level: 65 Points: 9,480, Level: 65 Points: 9,480, Level: 65
Level up: 44%, 170 Points needed
Level up: 44% Level up: 44% Level up: 44%
Activity: 0.6%
Activity: 0.6% Activity: 0.6% Activity: 0.6%
Garage is empty, add now
 
Join Date: Jul 2006
Location: in a house with a roof
Posts: 3,933
Thanks: 0
Thanked 4 Times in 4 Posts
iTrader: (10)
1. Just replacing with the Z-tube gives more sound (no resonators as with the G's OEM).
2. Yes...IMO...but curious what the stock air box w/ K&N and Ztube sounds like. Many ppl do that set-up.
3. Yes, but haven't heard the Stillen for comparision.
My JWT added a nice growl under the hood that added to and compliments the nice tone of the stock exhaust.
But now with my Injen dual track edition exhaust, that's all I hear now.
__________________
06 DG 6mt|Aero|RAS|Mods|TSB Revup Long-block warranty replacement.

Last edited by V35 Skyline GT; 08-11-2006 at 10:56 AM.
Reply With Quote
  #10  
Old 08-16-2006, 11:52 PM
Registered User
Garage is empty, add now
 
Join Date: Aug 2005
Location: PA
Posts: 29
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader: (3)
Send a message via AIM to GILLIN25
Just installed my Stillen Box and Z tube. Could not ask for a more perfect sound combination. I have a spacer ready to be installed, but I was just wondering what kind of affect this will have on sound and power.
Reply With Quote
  #11  
Old 08-16-2006, 11:59 PM
speedracerg35's Avatar
Registered User
Points: 10,139, Level: 67
Points: 10,139, Level: 67 Points: 10,139, Level: 67 Points: 10,139, Level: 67
Level up: 23%, 311 Points needed
Level up: 23% Level up: 23% Level up: 23%
Activity: 3.7%
Activity: 3.7% Activity: 3.7% Activity: 3.7%
Garage is empty, add now
 
Join Date: Feb 2006
Location: baltimore
Posts: 2,947
Thanks: 3
Thanked 35 Times in 26 Posts
iTrader: (8)
Quote:
Originally Posted by pra11
Yeah I've definitely stomped on it to redline through all the first 3 gears. It really is amazing to me how loud it gets when it's floored.

And yes, I'm running it with a z-tube as well as a Crawford V5 upper plenum. Only other mods I've got.
i think there is something about having both the stillen and the ztube. i had the stillen box on without much difference, but the combination of both box and tube resulted in a deep and loud wot noise.
Reply With Quote
  #12  
Old 08-17-2006, 12:29 AM
Calvin's Avatar
Overglorified Altima
Points: 90,472, Level: 100
Points: 90,472, Level: 100 Points: 90,472, Level: 100 Points: 90,472, Level: 100
Level up: 0%, 0 Points needed
Level up: 0% Level up: 0% Level up: 0%
Activity: 1.8%
Activity: 1.8% Activity: 1.8% Activity: 1.8%
2006 Infiniti G35
 
Join Date: Jun 2006
Location: Chicago
Posts: 53,496
Thanks: 55
Thanked 173 Times in 117 Posts
iTrader: (65)
Send a message via AIM to Calvin Send a message via Skype™ to Calvin
yeh..you wont get any noise unless you have a ztube...............

the gtube is "baffled" which makes it quieter..so the stillen air box with gtube is kinda pointless...
Reply With Quote
  #13  
Old 08-17-2006, 12:33 AM
speedracerg35's Avatar
Registered User
Points: 10,139, Level: 67
Points: 10,139, Level: 67 Points: 10,139, Level: 67 Points: 10,139, Level: 67
Level up: 23%, 311 Points needed
Level up: 23% Level up: 23% Level up: 23%
Activity: 3.7%
Activity: 3.7% Activity: 3.7% Activity: 3.7%
Garage is empty, add now
 
Join Date: Feb 2006
Location: baltimore
Posts: 2,947
Thanks: 3
Thanked 35 Times in 26 Posts
iTrader: (8)
Quote:
Originally Posted by aHero4Eternity
yeh..you wont get any noise unless you have a ztube...............

the gtube is "baffled" which makes it quieter..so the stillen air box with gtube is kinda pointless...
actually, my point or question is whether you get the same sound with just the tube and no stillen? sounds like this guy had a ztube and no stillen, and the the car was not loud until he put the box on. my situation was the opposite. i had a stillen and didn't get an increase in noise until i put the tube on.
Reply With Quote
  #14  
Old 08-18-2006, 11:51 AM
Registered User
Points: 5,934, Level: 49
Points: 5,934, Level: 49 Points: 5,934, Level: 49 Points: 5,934, Level: 49
Level up: 92%, 16 Points needed
Level up: 92% Level up: 92% Level up: 92%
Activity: 0.7%
Activity: 0.7% Activity: 0.7% Activity: 0.7%
Garage is empty, add now
 
Join Date: Sep 2005
Posts: 36
Thanks: 0
Thanked 1 Time in 1 Post
iTrader: (2)
Hey everyone. Just to avoid confusion, I actually installed the z-tube and Stillen intake simultaneously. So I can't comment on which component truly made the majority of the sound difference. However, from past experiences with installing short-arm cone-style intakes in other cars, the cone itself made a huge difference in sound. Because of that, I assumed that the sound difference I heard was primarily due to Stillen's airbox.
Reply With Quote
  #15  
Old 10-06-2006, 04:41 AM
Registered User
Garage is empty, add now
 
Join Date: Jul 2006
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader: (0)
God damn, a simple intake install and excellent review. Props for do-it-yourself and taking the time to write a review. This is what I like to see, satisfied drivers!
Reply With Quote
Old 10-06-2006, 04:41 AM
 
 
 
submit to reddit
Reply

Tags
350z, compared, coupe, flow, g35, gtube, intake, loss, reveiw, review, reviews, stillen, stock, torque, ztube


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


All times are GMT -4. The time now is 09:49 AM.


Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2002 - 2008, G35DRIVER.COM All Rights Reserved.
Advertising - Terms of Service - Privacy Statement - JOBS


G35Driver.com | My350Z.com | MyG37.com | ZDriver.com |

Everyone's Contact Details