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Old Fri, Mar-09-2018, 08:42:40 PM   #1
lippstuh
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Default Group buy: Karbonius CSL Airbox - Up to 14% off



GROUP BUY
Karbonius CSL Airbox

Save up to 14% off a Karbonius CSL Airbox

I am excited to share another group buy with the community. The folks over at Karbonius have been generous enough to offer big discounts on their CSL Airboxes, snorkel, and ITG air filter.

Karbonius has an awesome track record and has sold over 370 CSL airboxes!

I am currently on vacation and will update this post with more info next week


Group buy discounts

Ranges from 5% up to 20% off the airboxes (depending which model you prefer)

All USD prices are estimates based on when this was first posted. Exchange rates will change so expect some change in price when finalize payment

20 airboxes
12% off CSL airboxes with carbon fiber trumpets (1378 € or ~$1,695.88)
14% off CSL airboxes with OE plastic trumpets (1261 € or ~$1,551.89)
20% off CSL snorkels (301 € or ~$370.43)
25% off CSL ITG air filters (60 € or ~$73.84)


10 airboxes
10% off a CSL airboxes with carbon fiber trumpets
10% off a CSL airboxes with OE plastic trumpets
10% off CSL snorkels
15% off CSL ITG air filters


5 airboxes
5% off a CSL airboxes with carbon fiber trumpets
5% off a CSL airboxes with OE plastic trumpets
5% off CSL snorkels
No discount on CSL ITG air filters


Payment
There are no partial payments; we will go down the list and invoice each buyer for the full amount when your box is ready.

More info coming next week (week of March 12th)


Shipping
Will be shipped with DHL plane. It takes 4-5 days to arrive depending on customs.

Production rate for our group buy
Airboxes can be produced at a rate of 2-4 airboxes per week. Specifically, the rates are:
3-4 per week airboxes with OE trumpets
2-3 per week airboxes with carbon trumpets


Costs
To continental USA and Canada is 179 € or ~$220.88 each box OR 272€ or ~ $335.65 for 2 airboxes
To Ireland is 45 €
To Lebanon is 222 €
Please ask for any additional rates




Products


CSL Airboxes with CF Trumpets
From the Karbonius:
A high quality replica of the well-known M3 CSL BMW Airbox. This is, perhaps, the best replica in the market. It is made 100% in carbon fibre prepreg, based on 3D scanning of the original CSL Airbox, with aluminum mould and cured in autoclave at 135C, which lends the best finished you can find on the market and a major thermal and structural stability. This is the same technology used in F1.

Besides, it includes the CNC machined-made items of aluminum, aluminum threads and stainless-steel screws. This piece presents a perfect match between both sides due to a hermetic seal with a neoprene foam gasket.

CSL Karbonius Airbox present several differences with the genuine BMW CSL Airbox. Among others, we made trumpets in carbon fibre and not in plastic, what make our airbox even more light. We have also softened some shapes and varnished the interior, what contributes to minimize the turbulences inside the airbox system, with the consequent gain of power, around 25 HP depending on the parameters chosen for reprogramming.

All our pieces are numbered, so its origin and authenticity are
granted.

Kit includes:
✓ Airbox
✓ CNC machine-made items of aluminium
✓ Aluminium threads
✓ Stainless-steel screws
✓ Bracket ventilation valve
✓ M POWER sticker
✓ Certificate of authenticity
Does not include air filter (order the ITG from Karbonius or an OE one from a dealer)

Features:
✓ Appreciable gain of power
✓ Aerodynamic design
✓ Great fitment guaranteed, simple installation
✓ Reinforced in all key points, crews, connectors, etc.
✓ Awesome sound
✓ 100% carbon fibre prepreg
✓ CF trumpets in OE length and shape
✓ Cured in autoclave at 135 C and 5 pressure BAR
✓ Exclusive and numbered piece
✓ Aggressive appearance
✓ 5 year warranty



CSL Airboxes with OE Plastic Trumpets
The construction of this box is the same as the AIrbox with CF trumpets. You will receive the same items as the airbox above. The main difference between the two airbox offerings are the trumpets, warranty and how it is cured.

Differences from the CF trumpet airbox:
✓ OE plastic trumpets
✓ Cured in autoclave at 120 C and 3 pressure BAR
✓ 2 year warranty
✓ CF trumpets airboxes have 1 extra varnish layer

I am still gathering information on this product. Feel free to ask questions so I can relay them to Karbonius



CSL Snorkel
Optional. Attaches to the CSL airbox to draw cold air from lower parts of the bumper. (If you want an operating flap, you will want an OE snorkel; not a Karbonius one).


Karbonius CSL ITG Filter
Karbonius recommends using their ITG filter for the CSL airbox for the best performance. ITG filter has the Karbonius logo printed on it.

Read more about ITG filters benefits


Karbonius Composites
Website Facebook


No Affiliation with Karbonius
I have no affiliation with Karbonius. To be transparent, I have not received any gifts or money for posting this group buy. I am receiving different discount than the rest of the group buy.

Last edited by lippstuh; Mon, Apr-23-2018 at 05:15:02 PM.
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Old Fri, Mar-09-2018, 08:43:00 PM   #2
lippstuh
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Default Re: Group buy: Karbonius CSL Airbox - Up to 14% off

This section will be updated with the development process. For now, you can learn more on a few topics.

3D scanning of an OE CSL Airbox

CF Trumpets are exact replicas in diameter long and shape of the OEM trumpets

Aluminum trumpet molds

ITG CSL Airbox filter benefits



Previously asked questions

Is there any sound difference between with CF trumpet vs the OE plastic trumpet airboxes?
Quote:
At the moment we have not videos where you can hear the difference , to be honest there is some difference but is not too big, next week we will make some tests comparing the oem and our carbon trumpets, Ill try to make a dB test too!!!
For our experience the main reason to get a louder sound its not due to the trumpets if not to the "baked" temperature and pressure that we cure the airboxes.
We found diffrence in the sound in the airboxes made at 135 comparing with airboxes made at 100, the higher temperature means louder sound, but there are another influential factors, as :

quality of the carbon prepreg , not all the carbons are the same, the prepreg made at home or cheap prepregs have not the same resistence than the prepreg that we use.This is because the temperature used to make the carbon filaments. Our prepreg is one of the best on the market, and the same that BMW are using in some of their parts.

laminate composing: using different composing you can get more or less loud sound.

Varnish: as more layers, less sound!! this is because the varnish act as "sound insulator ", is complicated to explain but we found a directly relation between quantity of varnish layers and loud sound.

And there is another factor that influences :"Reverb color" we take this phenomenon seriously , but I cant talk about this because its classified information ! and is the result of our experience in carbon parts for more than 10 years and before more than 370 airboxes.

As soon I have more info about trumpets tests Ill tell you something more.
Regards

Do the current version of the airboxes whistle and require a vacuum tee to silent it?
Quote:
To be honest only 2 customers told us that they have a problem with a whistle in the box, but Im not sure about whats the reason, because this "issue " do not happens in all our boxes !!!!
I know that somebody say that you can put a T on the hole and solve the problem. Im making a new CNC machined with round edges to try to solve the problem.

Is separation between the CF trumpets the same as OE?
Quote:
No, the distance between our carbon trumpets is less than OEM trumpets, our carbon trumpet have the same shape than OEM, but the front ring its a bit higher, only for aesthetical reasons, we are doing this because some people said that our trumpets its was too separeted, so we simply make the ring higher, the trumpet its the same but they seems closer. I dont know if you understand me ?
You can see in the photo that you attach, where the oem trumpets its into our aluminum mold, the OEM trumpet do not "filled" our mold, we are using this surface to make our trumpets higher on the front but really they are the same in the inner.

Is the diameter of the trumpets bigger? If so, how much?
Quote:
We are making a new molds with 51mm diameter instead 49,5 mm that we have at this moment. I think that there will not be difference, but at least it will not be an argument to despise our trumpets.

Length is the same for all 6 trumpets same as OE plastic trumpets?
Quote:
Yes, lenght of the trumpets its the samethan OEM and 6 trumpets the same lenght .

How many degrees have you inclined trumpets 5 and 6?
Quote:
Trumpets 5 and 6 are inclined around 5/7 degress to facilitate the airflow .

Last edited by lippstuh; Wed, Mar-14-2018 at 02:07:05 AM.
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Old Fri, Mar-09-2018, 08:43:20 PM   #3
lippstuh
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Default Re: Group buy: Karbonius CSL Airbox - Up to 14% off

Part list

Filter
Part NamePart #Quantity
CSL OE filter137278386251
OR  
Karbonius ITG filter 1


MAP sensor
This is NZ_M3’s alternative MAP sensor solution. As terra suggested, you won't need the CSL plug harness adapter pigtail if you're just modifying your stock (non-CSL) wire harness.

Part NamePart #Quantity
CSL fuel rail134178335971
Bosch MAP sensor02612301011
Bosch plug19284040721
Viton O-Ring size 8mm ID x 3mmGeneric or 136217432991

There is also the Lang Racing MAP sensor solution (cheaper).


IAT
Part NamePart #Quantity
Hella Intake Temp Sensor136217395101
2 pole socket for IAT125214276151
IAT boot125217326351


Hardware
Part NamePart #Quantity
CSL crankcase vent hose111578336491
CSL airbox shut off valve116178336471
ITB hose clamps116178303066
Intake hose clamp116178317456
Throttle Body Boot (needed for 10/04+)*116178302656

*Check what you have if your car was built on the cutoff date as some may have the older boots. After 10/2004, the boots used have a wider ID on the air intake side so you cannot reuse your old ones. You will need to buy new ones that are the same ID on both ends.


Tune
Part NamePart #Quantity
ALPHA N tune 1
OR  
CSL tune using a MSS54HP DME 1


SMG
You will need everything above and everything below:
Part NamePart #Quantity
CSL SMG Expansion Tank Bracket411478961361
CSL SMG Expansion Tank Reservoir215322825491
Pentosin CHF 11S Fluid 1

Last edited by lippstuh; Fri, Mar-16-2018 at 10:15:23 PM.
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Old Fri, Mar-09-2018, 08:44:08 PM   #4
lippstuh
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Default Re: Group buy: Karbonius CSL Airbox - Up to 14% off

The list


Ordered
37. Andres1
38. S54 Madness
39. Ariusen
40. OneFastSicilian
41. E90pat
42. White_335i
43. EYEHAVEYOU
44. rich.7
45. Wilhit10

Invoiced
35. repoman89
36. #///


Shipped
2. TheSt|G (received)
3. TheSt|G (received)
5. jchan112 (received)
6. lippstuh (received)
7. 911-AL
8. 911-AL
9. jickel180
10. Mantii (received)
11. mainstreamer00
12. XrumX
13. BLSwagger (received)
14. WadeWilson0291
15. andone815 (received)
16. Zzyzx85
17. rcrescencio
18. Malloy
19. Atsantone
20. speedblind_az
21. [anonymous]
22. arg617
24. redshift
25. Ben West (Facebook)
28. thegenius... (email, Received)
28. Greg S
30. Alpine_73
32. gabylonfive
33. 2004LSB
34. Gary Powers


Cancelled
Androofoo
jchan112
Bimmerrodg
Cosmos///M3
M Spec
bmwahba39
mcmahonbj
Nrikem3 (snorkel only)
23. colingreene
26. R8dM
29. Hungry HIppo

Last edited by lippstuh; Tue, Jul-31-2018 at 05:09:03 PM.
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Old Fri, Mar-09-2018, 08:47:46 PM   #5
androofoo
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Default Re: Group buy: Karbonius CSL Airbox - Up to 14% off

1. lippstuh
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Sent from my Samsung using Tapatalk
__________________

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Old Fri, Mar-09-2018, 09:07:03 PM   #6
BsantosEeuro
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Default Re: Group buy: Karbonius CSL Airbox - Up to 14% off

dammit i just pledged for the apex wheel group buy >
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Old Fri, Mar-09-2018, 09:21:02 PM   #7
Zzyzx85
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Default Re: Group buy: Karbonius CSL Airbox - Up to 14% off

When does this GB close?
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Old Fri, Mar-09-2018, 09:32:21 PM   #8
bimmerrodg
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Default Re: Group buy: Karbonius CSL Airbox - Up to 14% off

What else needed?

-tune
-iat

Can someone provide what extra part we need pls.

Just trying to come out to a final price to compare with evolve.

Thx
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Old Fri, Mar-09-2018, 09:35:43 PM   #9
mcmahonbj
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Default Re: Group buy: Karbonius CSL Airbox - Up to 14% off

1. lippstuh
2. Androofoo
3. mcmahonbj (CF Trumpets/ITG Filter x2)
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__________________
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Old Fri, Mar-09-2018, 09:47:29 PM   #10
Jovica
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Default Re: Group buy: Karbonius CSL Airbox - Up to 14% off

1. lippstuh
2. Androofoo
3. mcmahonbj (CF Trumpets/ITG Filter x2)
4. Jovica (OE Trumpets)
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Discussing Group buy: Karbonius CSL Airbox - Up to 14% off in the Parts for Sale/Wanted Forum - Post your Parts Wanted, and non commercial bmw related items for sale. We ask that companies selling goods become a Sponsor to advertise your goods. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)