BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Cosmetic/Visual (Exterior + Interior) Modifications
 
European Auto Source (EAS)
Post Reply
 
Thread Tools Search this Thread
      10-26-2023, 06:06 PM   #1
Thumbie
Private First Class
Thumbie's Avatar
73
Rep
196
Posts

Drives: 2011 M3/4/6
Join Date: Sep 2021
Location: SF Bay Area

iTrader: (0)

Installed Turner Cowl Delete Kit

Installed the cowl cabin filter housing delete kit from Turner motorsports last night. Pretty easy since you're mostly removing parts. Ziptied and tucked the two sensors down in safe places. Also gave the whole engine bay a little cleaning. i think it looks a little better overall.

Will this cause airflow issues and/or introduce more dust into the engine bay? TBD I will monitor regularly and report back.
Attached Images
  
__________________
-Thumbie

2011 Jerez E90 M3 6-speed Competition Package
Appreciate 5
DRLane3941.00
Ajolives892.50
pjk38086.50
DrFerry6623.50
GcD122.50
      10-26-2023, 08:37 PM   #2
Redd
Brigadier General
3799
Rep
4,105
Posts

Drives: 2010 BMW E92 M3 Dakar Edition
Join Date: Jul 2015
Location: Malaysia

iTrader: (0)

Any difference in sound?
Appreciate 0
      10-30-2023, 01:28 PM   #3
Thumbie
Private First Class
Thumbie's Avatar
73
Rep
196
Posts

Drives: 2011 M3/4/6
Join Date: Sep 2021
Location: SF Bay Area

iTrader: (0)

Update #1: There is a slight increase in noise.

At cruising speed I notice a little more engine intake noise when i really get on the gas (which I like, and the same reason people like carbon intakes like haimus).

Around town low speeds, I notice a light increase in overall engine bay noise. Mostly the "whir" of the valvetrain. I feel like 50/50 if people like that or not.

Both are very small increases, and may not be noticable to passengers, or even some owners.

I will follow up on if there is more dust and stuff in the engine bay, but for now I've only put 50 miles or so on the car since install. I plan to do a track day soon so will follow up if it causes any engine bay airflow issues, but it is getting cold here so I'm not sure how to test it.
__________________
-Thumbie

2011 Jerez E90 M3 6-speed Competition Package
Appreciate 1
DrFerry6623.50
      10-30-2023, 08:55 PM   #4
Redd
Brigadier General
3799
Rep
4,105
Posts

Drives: 2010 BMW E92 M3 Dakar Edition
Join Date: Jul 2015
Location: Malaysia

iTrader: (0)

Was there a particular reason you decided to do this mod?
Appreciate 0
      10-31-2023, 04:06 PM   #5
Thumbie
Private First Class
Thumbie's Avatar
73
Rep
196
Posts

Drives: 2011 M3/4/6
Join Date: Sep 2021
Location: SF Bay Area

iTrader: (0)

OEM cover had a lil crack in it lol.
__________________
-Thumbie

2011 Jerez E90 M3 6-speed Competition Package
Appreciate 0
      10-31-2023, 08:04 PM   #6
Redd
Brigadier General
3799
Rep
4,105
Posts

Drives: 2010 BMW E92 M3 Dakar Edition
Join Date: Jul 2015
Location: Malaysia

iTrader: (0)

Hmm good idea. Those stock covers aren't cheap. I shall keep this mod in mind. Thanks.
Appreciate 0
      11-02-2023, 04:51 PM   #7
Z K
Major General
Z K's Avatar
1878
Rep
5,501
Posts

Drives: E90 M3, G20 M340i
Join Date: Jul 2011
Location: San Francisco

iTrader: (3)

The drawbacks I see is that you're deleting the cabin air filters and you can get water into the vents from the outside if you drive in the rain or wash your car.
__________________
Auto Detailing Enthusiast!
Appreciate 0
      11-02-2023, 11:59 PM   #8
DRLane
Brigadier General
DRLane's Avatar
United_States
3941
Rep
3,375
Posts

Drives: E92 M3
Join Date: Oct 2018
Location: Colorado

iTrader: (21)

Garage List
2008 m3  [6.17]
Quote:
Originally Posted by Z K View Post
The drawbacks I see is that you're deleting the cabin air filters and you can get water into the vents from the outside if you drive in the rain or wash your car.
Naw, these oiled filters have been running on these cars forever. Mine included through dozens of washers and rainstorms. Itís a non issue.
__________________
Not a Doctor, those are just my initials.
Appreciate 1
DrFerry6623.50
      11-04-2023, 11:32 AM   #9
Theodore2
Enlisted Member
39
Rep
49
Posts

Drives: E92 M3
Join Date: Aug 2022
Location: Tampa, FL

iTrader: (0)

Do you experience any increased "wind noise" similar to what you get when a piece of window trim or body trim is out of place disturbing the flow or air over the car or is the noise increase only intake/engine noise?
Appreciate 0
      11-06-2023, 04:36 PM   #10
CPWINCH
Brigadier General
CPWINCH's Avatar
United_States
727
Rep
4,635
Posts

Drives: Toyota Prius
Join Date: May 2010
Location: Los Angeles

iTrader: (7)

always nice to get some weight off the front of the car too, even if its marginal haha. I have been debating on doing this but cant seem to get a solid answer on the potential downsides.
__________________
Follow my BMW instagram @CARMODIFICATION Let me know you are from bimmerpost and i'll follow back
Appreciate 0
      11-07-2023, 02:42 PM   #11
Thumbie
Private First Class
Thumbie's Avatar
73
Rep
196
Posts

Drives: 2011 M3/4/6
Join Date: Sep 2021
Location: SF Bay Area

iTrader: (0)

Quote:
Originally Posted by Z K View Post
The drawbacks I see is that you're deleting the cabin air filters and you can get water into the vents from the outside if you drive in the rain or wash your car.
Quote:
Originally Posted by DRLane View Post
Naw, these oiled filters have been running on these cars forever. Mine included through dozens of washers and rainstorms. Itís a non issue.
Yes My hesitation was that you replace the large filter housing with just an exposed filter. I thought about maybe measuring and 3D printing some sort of hood or vent just to keep water off it when washing my car (direct spray, at least).

But sounds like it really doesn't matter as much as I thought...

As far as wind noise, I did not notice much if any at all. If there is an increase it is marginal, and less so than the engine noise. But I haven't noticed any. I have only driven 100 miles or so
__________________
-Thumbie

2011 Jerez E90 M3 6-speed Competition Package
Appreciate 0
      11-27-2023, 02:35 PM   #12
Thumbie
Private First Class
Thumbie's Avatar
73
Rep
196
Posts

Drives: 2011 M3/4/6
Join Date: Sep 2021
Location: SF Bay Area

iTrader: (0)

Update #2: I have a couple hundred miles on the car now since installing, including driving in the rain. I checked to see if there was much more dust, etc. in the engine bay. Short answer is: not really.

When I installed, I also wiped down the engine bay pretty good and applied a silicone-based protectant, so those surfaces did not collect much dust at all.

Going back to the noise increases, I will say you do really notice when you lay into the throttle. I like it. Not as smooth and nice-sounding as a carbon intake though.

Only downside is driving at low speeds you do get more general engine bay noise, but it is a small increase.

No increase in wind noise from this mod.
__________________
-Thumbie

2011 Jerez E90 M3 6-speed Competition Package
Appreciate 0
      11-29-2023, 04:44 PM   #13
e46IX
Second Lieutenant
Canada
109
Rep
215
Posts

Drives: Z4MC, E92 M3, F80 M3
Join Date: Apr 2017
Location: Toronto

iTrader: (0)

I just ordered one myself since it was discounted on ECS/Turner for black friday. I'm more curious about the weight savings, the BMS cowl delete filters claim 10lbs but that's also for the non-M setup which looks bulkier than ours. If we can get 6-7lbs that's a nice little mod considering it's hard to drop front-end weight.
Appreciate 0
      11-29-2023, 05:21 PM   #14
Thumbie
Private First Class
Thumbie's Avatar
73
Rep
196
Posts

Drives: 2011 M3/4/6
Join Date: Sep 2021
Location: SF Bay Area

iTrader: (0)

I only remember weighing it by hand, but it def felt like at least 6 pounds, when combining the cowl cover and the filter housings.
__________________
-Thumbie

2011 Jerez E90 M3 6-speed Competition Package
Appreciate 0
      01-04-2024, 05:01 PM   #15
Thumbie
Private First Class
Thumbie's Avatar
73
Rep
196
Posts

Drives: 2011 M3/4/6
Join Date: Sep 2021
Location: SF Bay Area

iTrader: (0)

Final update: Just did a track day and noticed no change in temps. Granted it was never above 67F at Laguna.

To sum it all up:
- Opens up engine bay a little bit. I like the look.
- Engine noise increased. I like the added sound when laying into the throttle. I am not a fan of the added valvetrain noise you hear when just cruising around town a low speeds, but it is minimal.
- I do not notice added wind noise
- Saves a few pounds up front. I'd say at least 5 lbs, but that's more than nothing.
- Increase of dust getting into engine bay is very minimal over stock cowl cover (since this mod removes the seal).
- Does not seem to affect airflow/cooling of engine bay. During a track day in mild weather I did not observe abnormal temps.
- Rain and car washes do not seem to be an issue with exposed filter. Although it doesn't hurt to be careful when you are washing.


Overall I am happy with it.

If your stock cowl cover and filter housings have no issues, I wouldn't bother unless you're trying to shave every pound possible. If you want your engine bay as quiet as possible, I would not recommend.
__________________
-Thumbie

2011 Jerez E90 M3 6-speed Competition Package

Last edited by Thumbie; 01-04-2024 at 05:15 PM..
Appreciate 0
      01-04-2024, 07:33 PM   #16
Redd
Brigadier General
3799
Rep
4,105
Posts

Drives: 2010 BMW E92 M3 Dakar Edition
Join Date: Jul 2015
Location: Malaysia

iTrader: (0)

So this kit removes the rubber seal between the cowl and the hood? I've always wondered if removing that seal would allow more airflow out of the engine bay and help reduce engine bay temperatures. I guess not.
Appreciate 0
      01-08-2024, 04:23 PM   #17
Thumbie
Private First Class
Thumbie's Avatar
73
Rep
196
Posts

Drives: 2011 M3/4/6
Join Date: Sep 2021
Location: SF Bay Area

iTrader: (0)

Quote:
Originally Posted by Redd View Post
So this kit removes the rubber seal between the cowl and the hood? I've always wondered if removing that seal would allow more airflow out of the engine bay and help reduce engine bay temperatures. I guess not.
Correct, and I actually heard the opposite. That it interrupts some kind of airflow from cowl turbulence (forget where I heard this).

But it turns out it's not something to worry about.
__________________
-Thumbie

2011 Jerez E90 M3 6-speed Competition Package
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -5. The time now is 06:45 PM.




m3post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST