OEM or BMS intake

Estorilblue340i · 10-07-2019, 12:55 PM

What has better performance on b58 340i ?
OEM intake or BMS intake ?
I live in San Diego btw I'm sure that effects the answer

Fuel-It! · 10-07-2019, 01:11 PM

The power gains are minimal at stock power levels but as you tune it you'll get more power with the intake, and it sounds great. I don't think any B58 intake is CARB approved for California though.

j1980mac · 10-07-2019, 01:27 PM

Quote:

Originally Posted by Fuel-It!

The power gains are minimal at stock power levels but as you tune it you'll get more power with the intake, and it sounds great. I don't think any B58 intake is CARB approved for California though.

Is there a dyno test (other than BMS claims) to prove that?

kern417 · 10-07-2019, 01:46 PM

Stock is better for performance. The best upgrade that I've seen is the Dinan intake with a big cone filter in a bigger enclosed box, but it's too expensive imo.

Cooler air is more important than less restriction in terms of power and reliability.

kern417 · 10-07-2019, 01:50 PM

Quote:

Originally Posted by j1980mac

Is there a dyno test (other than BMS claims) to prove that?

Someone made a point in another thread that was a good one. Dyno runs with an open hood can hide the benefits of maintaining an enclosed system. Draggy times would be more informative (or doing dyno runs with the hood closed, though not really recommended).

Fuel-It! · 10-07-2019, 06:12 PM

Quote:

Originally Posted by j1980mac

Is there a dyno test (other than BMS claims) to prove that?

I've seen dynos floating around but 1/4 mile trap speeds are the best way to evaluate real world power gains.

PURE340i · 10-07-2019, 06:58 PM

I liked my BMS intake. Spot on fitment and sounded pretty good. Priced well so If i had to buy a intake again i would probably get the BMS.

G.Newt · 10-07-2019, 07:21 PM

I like BMS because of the sound and super easy installation. Hasn't thrown any codes yet. I like that you can clean them or just replace the filter. At $60 for just the filter, I just replace it once a year.

DreamerJoe · 10-07-2019, 08:48 PM

I have an N55 and went with a closed style intake just because I don't like the idea of it sucking hot air from the engine bay. on turbo cars I have read that it doesn't really matter because of the intercooler or heat exchanger taking care of the higher temps that wouldn't exceed what is coming from the hot ass turbo/exhaust gasses anyway. and although I didn't notice more power, I did notice quicker throttle response and a bit more sound.

mike@x-ph.com · 10-08-2019, 11:34 AM

Quote:

Originally Posted by Estorilblue340i

What has better performance on b58 340i ?
OEM intake or BMS intake ?
I live in San Diego btw I'm sure that effects the answer

AC Fabrication posted dynos that showed open air intakes making 5-10 HP increase on this car

hybris · 10-08-2019, 12:17 PM

Quote:

Originally Posted by G.Newt

I like BMS because of the sound and super easy installation. Hasn't thrown any codes yet. I like that you can clean them or just replace the filter. At $60 for just the filter, I just replace it once a year.

I do a combination. I have two filters, so when one needs cleaning, I have a clean/oiled one ready to go which means I can swap immediately. So the car is still drivable while washing/drying/oiling the other one.

I'm also happy with BMS. Easy installation and nice sound! No codes.

MaximusJ · 10-09-2019, 11:02 AM

Quote:

Originally Posted by hybris

I do a combination. I have two filters, so when one needs cleaning, I have a clean/oiled one ready to go which means I can swap immediately. So the car is still drivable while washing/drying/oiling the other one.

I'm also happy with BMS. Easy installation and nice sound! No codes.

Same here. I'm doing this for over a decade now. The price of a filter is not that high compared to the benefits of being able to swap the filter in a breeze.

chenry · 10-09-2019, 05:17 PM

I ran the BMS for a while and if you want more intake noise with an easy install it's great. I'm back to a stock drop in now. I'd give it a go - maybe by a used one you can always sell it if it's not for you

For reference MP runs stock airbox and filter with all their cars and all their dyno runs.

j1980mac · 10-09-2019, 09:29 PM

Stock box is the way to go. I have an Arrma installed currently. Any other time it would be a K&N.

Solid67 · 10-09-2019, 10:28 PM

Quote:

Originally Posted by j1980mac

Stock box is the way to go. I have an Arrma installed currently. Any other time it would be a K&N.

How are you liking the Arma?

j1980mac · 10-10-2019, 12:06 AM

Quote:

Originally Posted by Solid67

Quote:

Originally Posted by j1980mac

Stock box is the way to go. I have an Arrma installed currently. Any other time it would be a K&N.

How are you liking the Arma?

It's good. Not any noticeable difference than the K&N.

kern417 · 10-10-2019, 09:56 AM

Quote:

Originally Posted by j1980mac

Stock box is the way to go. I have an Arrma installed currently. Any other time it would be a K&N.

That design is really cool. It really focuses on the key: maximizing surface area in an enclosed box. I just think the K&N ripples compensate for the same thing. That's probably why there wasn't a big difference.

Ahanix · 10-10-2019, 01:30 PM

Quote:

Originally Posted by j1980mac

Stock box is the way to go. I have an Arrma installed currently. Any other time it would be a K&N.

Do you have a link to the Arma intake that fits the b58?

j1980mac · 10-10-2019, 02:20 PM

Quote:

Originally Posted by Ahanix

Quote:

Originally Posted by j1980mac

Stock box is the way to go. I have an Arrma installed currently. Any other time it would be a K&N.

Do you have a link to the Arma intake that fits the b58?

No, but you could go on their website and search. It's kind of hard to find.

j1980mac · 10-10-2019, 04:43 PM

Here it is:

https://www.armaspeed.com/product/ar...nt-air-filter/

Ahanix · 10-12-2019, 11:48 PM

Quote:

Originally Posted by j1980mac

Here it is:

https://www.armaspeed.com/product/ar...nt-air-filter/

Thank you!

dotfiles · 10-18-2019, 01:44 PM

I just ordered the Agency Power because I want as much sound increase as possible.

10-07-2019, 12:55 PM	#1
Estorilblue340i Private First Class 13 Rep 128 Posts Drives: Estorilblue m performance 340i Join Date: Feb 2018 Location: San Diego iTrader: (0)	OEM or BMS intake What has better performance on b58 340i ? OEM intake or BMS intake ? I live in San Diego btw I'm sure that effects the answer
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10-07-2019, 01:11 PM	#2
Fuel-It! BimmerPost Supporting Vendor 254 Rep 476 Posts Drives: M4, M5, M2C, X4M, 440i, etc... Join Date: Mar 2019 Location: Phoenix AZ iTrader: (0)	The power gains are minimal at stock power levels but as you tune it you'll get more power with the intake, and it sounds great. I don't think any B58 intake is CARB approved for California though.
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10-07-2019, 06:58 PM	#7
PURE340i Private First Class 63 Rep 164 Posts Drives: BMW 340i & 335d Join Date: May 2017 Location: USA iTrader: (0)	I liked my BMS intake. Spot on fitment and sounded pretty good. Priced well so If i had to buy a intake again i would probably get the BMS.
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10-07-2019, 07:21 PM	#8
G.Newt First Lieutenant 168 Rep 384 Posts Drives: 340i xDrive 6MT Join Date: Feb 2017 Location: Denver, CO iTrader: (0)	I like BMS because of the sound and super easy installation. Hasn't thrown any codes yet. I like that you can clean them or just replace the filter. At $60 for just the filter, I just replace it once a year.
	Appreciate 1 hybris143.00 Quote

10-07-2019, 08:48 PM	#9
DreamerJoe First Lieutenant 97 Rep 322 Posts Drives: 2013 F30 335i Join Date: Dec 2018 Location: SoCal iTrader: (0)	I have an N55 and went with a closed style intake just because I don't like the idea of it sucking hot air from the engine bay. on turbo cars I have read that it doesn't really matter because of the intercooler or heat exchanger taking care of the higher temps that wouldn't exceed what is coming from the hot ass turbo/exhaust gasses anyway. and although I didn't notice more power, I did notice quicker throttle response and a bit more sound. __________________ Current: ERCatlessDP/A.A.FMIC/ Chargepipe/AFEintake/MHD 2 91 E30/CF kidney,M-mirror caps, trunk lip Future: Dinan springs, Koni or Bilstein shocks/wheel spacers/pure stage 2/rear brake mod SS lines/B58 HPFP upgrade looks promising
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10-09-2019, 05:17 PM	#13
chenry Major 576 Rep 1,330 Posts Drives: BostonWhaler,340+18 BMWs sofar Join Date: Feb 2012 Location: SoCal iTrader: (6)	I ran the BMS for a while and if you want more intake noise with an easy install it's great. I'm back to a stock drop in now. I'd give it a go - maybe by a used one you can always sell it if it's not for you For reference MP runs stock airbox and filter with all their cars and all their dyno runs.
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10-09-2019, 09:29 PM	#14
j1980mac Captain 219 Rep 935 Posts Drives: 2018 X3 M40i Join Date: Apr 2018 Location: Austin TX iTrader: (0)	Stock box is the way to go. I have an Arrma installed currently. Any other time it would be a K&N. Attached Images
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10-10-2019, 04:43 PM	#20
j1980mac Captain 219 Rep 935 Posts Drives: 2018 X3 M40i Join Date: Apr 2018 Location: Austin TX iTrader: (0)	Here it is: https://www.armaspeed.com/product/ar...nt-air-filter/
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10-18-2019, 01:44 PM	#22
dotfiles Private First Class 60 Rep 114 Posts Drives: 340i M-Sport Track Pack Join Date: Jan 2019 Location: San Francisco, CA iTrader: (0) Garage List 2016 BMW 340i [0.00]	I just ordered the Agency Power because I want as much sound increase as possible. __________________ F30 340i M-Sport - Mineral Grey - Track Handling - Bootmod3 Stage 1 - Dinan Midpipe Previous: 6th Gen Camaro SS 1LE \| B7 Audi A4 APR Tuned \| E46 330ci
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