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2Addicts | BMW 2-Series forum Technical Topics B58 (M240i) Engine, Transmission, Exhaust, Tuning NEW RELEASE: Dinan Carbon Fiber Cold Air Intake for F2x M240i, F3x 340i and F3x 440i

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      10-05-2018, 12:02 PM   #1
Dinan_Engineering
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NEW RELEASE: Dinan Carbon Fiber Cold Air Intake for F2x M240i, F3x 340i and F3x 440i

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Product Description: Following in the footsteps of the immensely popular and heralded intake for the BMW N55 engine, the next generation of 6 cylinder intake takes the same path to success. Improve upon the factory design by increasing flow via a larger air box and filter element thereby improving throttle response and lessening the strain on the turbocharger for maximum efficiency. While box and filter enlargement and redesign is a major factor in ultimately producing a more potent intake they are not the only variables in creating a more efficient design either. The devil is in the details which is where Dinan thrives. Coupled with maintaining Dinan's standard practice of utilizing a sealed system to ensure as much cold, outside air as possible is employed Dinan engineers focused their attention on the intake pipe itself where numerous improvements could be made. In factory configuration the intake tube comes complete with baffling and a small helmholtz chamber to reduce unwanted sound. As a byproduct these features also cause a more turbulent air flow path which robs the factory system of potential power. These 2 specific details are diametrically opposed to our intended markets desires so the removal of these features was paramount. Through numerous iterations a carbon fiber intake tube was developed that eliminated flow disruptions and allowed the natural sound of an unimpeded intake tract to sing. All told this thorough methodology of design allows the Dinan carbon fiber cold air intake for the B58 engine to elicit gains of 15 HP and 13 TRQ @ 6000 RPM on a completely stock vehicle. An impressive feat on today's turbocharged engines.

Not to be outdone by the performance side of the equation the B58 intake also is completely made up of carbon fiber unlike 6 cylinder intakes of the past where a mix of materials was used. Not only is the intake completely carbon construction but the quality of the material has been improved over previous generations as well. While looks are surely important, and this piece has that department covered in spades, the improved construction and coating also guarantees that the appearance of the engine bay with the Dinan intake will not be marred over time. Built to present well, perform well, and last the duration, the Dinan B58 carbon fiber cold air intake is a modification that is a must for any high high performance build.

Benefits of the Dinan Carbon Fiber High Flow Air Intake for the F22/F23 M240i, F30/F34 340i and F32/F33/F36 440i:
  • More Power: +15 HP & +13 lb-ft of torque @ 6000 RPM without additional modifications (13 WHP / 11 WTQ)
  • Sportier Sound
  • Improved throttle response
  • Larger volume air box (30% larger than stock) that completely seals
  • 34% increase in filter area (stock: 76.3inē, Dinan: 102.1inē)
  • Optimized carbon fiber intake tube
  • Free flowing injection molded Air Mass Meter housing (8% larger then stock)
  • Quick and easy installation
EMISSIONS NOTICE: Not legal for sale or use in California.

Product Page(s)/Pricing: https://www.dinancars.com/product/d7...ies=&mid=340i/

Availability: Initial allotment of 75 already sold out. Item is currently on back order with our next batch of carbon due in early November.

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      10-05-2018, 12:48 PM   #2
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#BOOM!
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      10-05-2018, 01:46 PM   #3
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BLAP! "EMISSIONS NOTICE: Not legal for sale or use in California."
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      10-05-2018, 10:00 PM   #4
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Proud owner of the Dinan_Engineering CAI 1 of the first 75 made.

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      10-06-2018, 08:17 AM   #5
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Quote:
Originally Posted by Scadam View Post
Proud owner of the Dinan_Engineering CAI 1 of the first 75 made.
Looks amazing. Need review ASAP!
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      10-06-2018, 10:52 AM   #6
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Originally Posted by pickle rick View Post
Looks amazing. Need review ASAP!
I’m loving it so far. Turbo spools faster now, so that is great. And the sound is amazing under a load.
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      10-06-2018, 09:22 PM   #7
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Ordered - now waiting for the next batch.
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      10-06-2018, 10:36 PM   #8
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Another shot from today! Im loving how this thing looks :)

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      10-07-2018, 08:02 AM   #9
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If it was made it out of black plastic instead of carbon fiber, it would look better, they could sell it for a lot less, and then I might actually buy one.
I'll just never understand the appeal of exposed carbon fiber.
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      10-07-2018, 08:41 PM   #10
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So the bottom part of the intake is unchanged with this?
So it would still be beneficial to pair with the hot climate intake elbow?
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      10-07-2018, 09:31 PM   #11
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Quote:
Originally Posted by PeterWT View Post
If it was made it out of black plastic instead of carbon fiber, it would look better, they could sell it for a lot less, and then I might actually buy one.
I'll just never understand the appeal of exposed carbon fiber.
AFE makes a similar part (and has been for a while now) - black plastic and about $300
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      10-08-2018, 10:29 AM   #12
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Quote:
Originally Posted by PeterWT View Post
If it was made it out of black plastic instead of carbon fiber, it would look better, they could sell it for a lot less, and then I might actually buy one.
I'll just never understand the appeal of exposed carbon fiber.
You are a unicorn my friend. =)

Quote:
Originally Posted by Nugget View Post
So the bottom part of the intake is unchanged with this?
So it would still be beneficial to pair with the hot climate intake elbow?
Bottom part of the intake is unchanged so in theory it would still be physically possible but it has never been tested in house so not sure it would provide any benefit to be honest. If you try it let us know how it works out.
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      10-08-2018, 12:05 PM   #13
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Quote:
Originally Posted by chenry View Post
AFE makes a similar part (and has been for a while now) - black plastic and about $300
I had not seen that. Thanks for the heads up.
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      10-08-2018, 01:23 PM   #14
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Dinan_Engineering is there going to be a Stage 2 tune?

If so, will it require the intake and any idea when it will be available?
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      10-08-2018, 01:54 PM   #15
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Quote:
Originally Posted by tennisfreak View Post
Dinan_Engineering is there going to be a Stage 2 tune?

If so, will it require the intake and any idea when it will be available?
Stage 2 is a bit of a hot button around here right now and I don't have a concrete answer to be honest. All I can say is the B58 is in a development cycle right now with a lot different different avenues being pursued. I realize this is a "non-answer" but its what I got to work with.

If history is any indication however a stage 2 tune will require the intake.
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      10-08-2018, 06:28 PM   #16
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Quote:
Originally Posted by Dinan_Engineering View Post
Stage 2 is a bit of a hot button around here right now and I don't have a concrete answer to be honest. All I can say is the B58 is in a development cycle right now with a lot different different avenues being pursued. I realize this is a "non-answer" but its what I got to work with.

If history is any indication however a stage 2 tune will require the intake.
Fingers crossed for stage 2 to be a flash tune.
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      10-08-2018, 07:10 PM   #17
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Quote:
Originally Posted by PeterWT View Post
Fingers crossed for stage 2 to be a flash tune.


Should be, I thought that was the primary purpose of getting the elite over the sport.
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      10-08-2018, 07:21 PM   #18
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Quote:
Originally Posted by Scadam View Post
Should be, I thought that was the primary purpose of getting the elite over the sport.
I meant a flash on the car's ECU (like the APR VW tunes), not on the piggyback ECU. Which, by the way, I never had any problems with on both of my GTIs. And now that they (APR & Dinan) are both owned by the same parent company and located in the same HQ, I'm sure they're sharing technology and expertise.
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      10-08-2018, 07:59 PM   #19
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If you want a flash tune for your B58, you can get that right now
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      10-08-2018, 08:49 PM   #20
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Quote:
Originally Posted by nikman011 View Post
If you want a flash tune for your B58, you can get that right now
Yes, but not a stage 2 upgrade from Dinan.
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      10-08-2018, 09:37 PM   #21
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Quote:
Originally Posted by PeterWT View Post
Quote:
Originally Posted by nikman011 View Post
If you want a flash tune for your B58, you can get that right now
Yes, but not a stage 2 upgrade from Dinan.
I get the feeling Dinan isn't going to start selling flash tunes, at least not warrantied flash tunes. However, if they did, I would most likely try it out even though I had to remove my Stage 1. I like all my Dinan parts, can't wait to get this CAI on this weekend
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      10-09-2018, 07:23 AM   #22
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Quote:
Originally Posted by nikman011 View Post
I get the feeling Dinan isn't going to start selling flash tunes, at least not warrantied flash tunes. However, if they did, I would most likely try it out even though I had to remove my Stage 1. I like all my Dinan parts, can't wait to get this CAI on this weekend
You never know. If you consider all of the hardware problems Dinan has had lately, that goes away with a flash tune. The cost to produce the hardware also goes away though it might be offset by a hand held tuner of some sort if they choose that route.
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