Z4-forum.com

taz1966 wrote: ↑Sun Nov 19, 2023 7:11 pm Hi,
Looks fantastic.
I have the Eventuri and it has transformed the noise.
I was thinking of changing it to the Karbonius.do you know if it is louder on acceleration.
Lastly where did you buy it and have you had to have an Alpha N tune

GT Spec wrote: ↑Sun Nov 19, 2023 5:40 pm Hi folks,

I finally got round to fitting the Karbonius S54 Race Airbox over the weekend. l know some members wanted to see some pics of it fitted in the engine bay.

I had to remove the redundant stock airbox rubber gasket and trim about 20mm of the length of the throat as it fouls the front panel as delivered.

It is a top quality item and the induction sound is orgasmic now

GT Spec

///MBan wrote: ↑Fri Nov 24, 2023 5:58 am

GT Spec wrote: ↑Sun Nov 19, 2023 5:40 pm Hi folks,

I finally got round to fitting the Karbonius S54 Race Airbox over the weekend. l know some members wanted to see some pics of it fitted in the engine bay.

I had to remove the redundant stock airbox rubber gasket and trim about 20mm of the length of the throat as it fouls the front panel as delivered.

It is a top quality item and the induction sound is orgasmic now

GT Spec

Do you mean that you had to trim 2cm off the Karbonius airbox? I haven’t heard of that being required and certainly isn’t ideal. How did you cut it cleanly?

And for removal of the airbox rubber gasket, is this reversible?

Thanks!

GT Spec wrote: ↑Fri Nov 24, 2023 11:32 am

///MBan wrote: ↑Fri Nov 24, 2023 5:58 am
Do you mean that you had to trim 2cm off the Karbonius airbox? I haven’t heard of that being required and certainly isn’t ideal. How did you cut it cleanly?

And for removal of the airbox rubber gasket, is this reversible?

Thanks!

Hi,

Yes, I masked up the inlet 'throat', used a calliper to mark it up and then a Dremel tool to trim it. The front panel on the E85/6 M is closer to the the engine than the E46 M3 so it fouls it.

Yes, the rubber gasket can be refitted if you decide to put the car back to stock.

maupineda wrote: ↑Fri Nov 24, 2023 6:05 pm what rubber gasket do you guys refer to?

///MBan wrote: ↑Fri Nov 24, 2023 11:03 pm [quote="GT Spec" post_id=<chrome_annotation data-index="17" data-data="fef13edf-b9a0-4ecc-be5d-19d98bb71ff6" data-annotation="2041178" data-type="PHONE_NUMBER" role="link" style="border-bottom-width: 1px; border-bottom-style: solid; border-bottom-color: rgb(82, 82, 82);">2041178</chrome_annotation> time=<chrome_annotation data-index="18" data-data="0d3f7289-81db-442e-aecd-b57688be4f57" data-annotation="1700821953" data-type="PHONE_NUMBER" role="link" style="border-bottom-width: 1px; border-bottom-style: solid; border-bottom-color: rgb(82, 82, 82);">1700821953</chrome_annotation> user_id=34307]
[quote=///MBan post_id=<chrome_annotation data-index="19" data-data="02a85fe3-b938-463e-be46-032f43c6f946" data-annotation="2041153" data-type="PHONE_NUMBER" role="link" style="border-bottom-width: 1px; border-bottom-style: solid; border-bottom-color: rgb(82, 82, 82);">2041153</chrome_annotation> time=<chrome_annotation data-index="20" data-data="6966c1b9-46e5-484a-b829-2f05a64a1fe3" data-annotation="1700801895" data-type="PHONE_NUMBER" role="link" style="border-bottom-width: 1px; border-bottom-style: solid; border-bottom-color: rgb(82, 82, 82);">1700801895</chrome_annotation> user_id=29316]

Do you mean that you had to trim 2cm off the Karbonius airbox? I haven’t heard of that being required and certainly isn’t ideal. How did you cut it cleanly?

And for removal of the airbox rubber gasket, is this reversible?

Thanks!

///MC wrote: ↑Tue Nov 28, 2023 5:53 pm Hey,

I also recently installed a Karbonius Race airbox. Mine does not have the cut on the snorkel ( production August 2023) , i also had to trim it a tiny bit but as you can see from the pic, I kept the rubber part feeding the air from the grills and it lines up perfectly to feed the airbox.

I did previously have an eventuri intake, while alot of people will say it sounds similar to an airbox, it really isnt close, the airbox fills up the cabin with induction roar all the way to 8000 rpm. I actually removed my RPI mufflers just to enjoy the glorious induction noise.

///MBan wrote: ↑Sat Dec 02, 2023 2:20 am

///MC wrote: ↑Tue Nov 28, 2023 5:53 pm Hey,

I also recently installed a Karbonius Race airbox. Mine does not have the cut on the snorkel ( production August 2023) , i also had to trim it a tiny bit but as you can see from the pic, I kept the rubber part feeding the air from the grills and it lines up perfectly to feed the airbox.

I did previously have an eventuri intake, while alot of people will say it sounds similar to an airbox, it really isnt close, the airbox fills up the cabin with induction roar all the way to 8000 rpm. I actually removed my RPI mufflers just to enjoy the glorious induction noise.

Did you use a Dremel like GT Spec to trim the throat? And how did you work out how much to trim off - trim a bit off at a time until it fit?

I have one of these boxes on order and have to admit to being nervous about cutting it!

///MC wrote: ↑Tue Nov 28, 2023 5:53 pm Hey,

I also recently installed a Karbonius Race airbox. Mine does not have the cut on the snorkel ( production August 2023) , i also had to trim it a tiny bit but as you can see from the pic, I kept the rubber part feeding the air from the grills and it lines up perfectly to feed the airbox.

I did previously have an eventuri intake, while alot of people will say it sounds similar to an airbox, it really isnt close, the airbox fills up the cabin with induction roar all the way to 8000 rpm. I actually removed my RPI mufflers just to enjoy the glorious induction noise.