GB: E46 M3 Carbon Driveshaft by MFactory

[pawa_k2001]

Any feedback on this driveshaft?

[Epoustouflant]

Any feedback on this driveshaft?

The initial test driveshaft needed revisions and M-Factory is working on it. I haven't heard official updates yet from Michael. I'm hoping this will be launched in the winter. I'm currently installing the V3 DCT version on my E9X M3 for final testing.

[pawa_k2001]

Please keep us updated. Interesting in the product but with multiple previous revisions(going back to M3forum.net), I am a bit apprehensive.

[Epoustouflant]

Please keep us updated. Interesting in the product but with multiple previous revisions(going back to M3forum.net), I am a bit apprehensive.

Understandably so! These do make more resonance as they are hollow - but there shouldn't be any vibrations whatsoever for them to be functional.

[Epoustouflant]

This GB is cancelled.

Unfortunately, MFactory's V3 has critical vibration issues per all recent testings on the E9X M3 and E46 M3.

I am currently discussing with the actual, original manufacturer of the V2 and hold the patents of the proprietary flange design. I will be doing a pre-order for the E9X M3 shortly. I will also test, document and review a E46 M3 driveshaft later this Winter for a probable Spring introduction.

----

Some cliff notes:

• Mfactory made a V3 claiming the carbon tube was improved and the proprietary flange was retained. Turns out we were lied to.
• They went back to the V1 flange proven to fail as they don't actually hold any patent or license.
• The carbon tube is made by a golf club manufacturer that doesn’t have the equipment to balance it.
• All testers had vibrations issues.
• He brushed all testers off and still shipped orders out. I raised red flags and was thrown under the bus.
• Upon digging, Mfactory did a V3 because the V2 had a price increase due to covid’s impact on Toray, the raw carbon manufacturer - and he couldn’t make it work with the initial E9X M3 GB pricing I had negotiated a year ago.
• The V2 is alive, available and actually manufactured by YFCM Composites LtD, the rightful patent holder to the flange proven to work out in the real world with 400+ installations.

[4getr34]

will this gb open again?

[0-60motorsports]

will this gb open again?

As far as I know there is no product for the E46 M3 to open this GB?

[Feffman]

Has anyone approached a US firm of known quality and reliability like QA1 (https://www.qa1.net/custom-driveshafts) doing a custom carbon fiber driveshaft? Per their web site, a custom driveshaft is somewhere around $1,600 but I assume it would be a bit higher to do the front driveshaft fitting for the M3 front donut.

Feff

[Epoustouflant]

I've been running the proper YFCM E46 M3 CF driveshaft for 3 months. It works flawlessly on my car.

See here.

10x were delivered to pre-order members. The next pre-order will be launched this month for E46 M, E6x M and E9x M applications. These take roughly 3 months to manufacture in batches.

[C///M]

I may be interested in jumping on the next E46 buy.

Sent from my Pixel 6 Pro using Tapatalk

[0-60motorsports]

I may be interested in jumping on the next E46 buy.

Sent from my Pixel 6 Pro using Tapatalk

Me too, if its reasonable shipped to Bahrain LOL

[Epoustouflant]

I may be interested in jumping on the next E46 buy.

Sent from my Pixel 6 Pro using Tapatalk

You can get on the waiting list here.

Me too, if its reasonable shipped to Bahrain LOL

180$ US anywhere : )

From my feedback, I suggested to optimize the 6spd flange. They have lightened the flange by reducing its length specifically for manual guys.

The kicker: it's also cheaper!

Disregard the seal, this was fitted for dimensions testing.

[4getr34]

will there be a smg version? or is it one size fits all?

[Epoustouflant]

will there be a smg version? or is it one size fits all?

Yes, the SMG version is the longer flange. It's what I have on my car now, even though it's a 6spd. The shortened flange was made to reduce needless cost, and weight for 6spd guys.

[4getr34]

Thanks I’m in