E9x M3 V2 Carbon Driveshaft
by YFCM Composites Technologies
BUILD JOURNAL: SPECIAL SERIES
The one and only V2.
In this Special Series, I cover the bizarre backstory to uncovering the manufacturer of the authentic V2 product.
I compare it with the counterfeit unit I personally tested.
I follow it up with documenting the installation procedures and cover my driving impressions along with David, who also tested the counterfeit unit and the authentic V2.
Cheers,
- Matt / @m3_epoustouflant
It's lighter than steel.
The YFCM carbon driveshaft weights 11 lbs for the 6spd and 13 lbs for the MDCT, saving 12 lbs of drivetrain mass.
It's stronger than steel.
The carbon tube was engineered and tested by YFCM to sustains forces on proprietary torsional stress machine to over 5500nm / 4000 ft lbs of twisting force.
It's vibration free.
The 1 piece design retains the use of the flex disc on the transmission output shaft, a critical component to remaining street friendly.
It's made from highest quality carbon.
The YFCM carbon tube is is winded from pre-preg carbon fiber sourced in Japan from Toray Industries with the signature gold filament.
It can still flex.
YFCM uses an OEM grade CV flange to connect with the differential. It is oiled and telescopic, helping to absorb drivetrain shock in hard driving conditions.
Patented Self Locking Flange
It will never unglue.
The flange is a self-locking, sealed design: it locks over the carbon tube.
It eliminates all probabilities for the tube to spin free of the flange, no matter the torque.
Machined from 7075 forged aluminum. The flange is weight optimized and anodized for corrosion resistance.
Spec your driveshaft
"Finally got round to fitting the carbon propshaft on my e92. One word wow! Revs up quicker and zero vibrations!"
"Mashing on the throttle is instantly translated to power – it’s like driving an electric car.
I was able to take it to 110 MPH (in Mexico) with 0 vibrations or humming. I’m ecstatic!"
Tested & Warrantied
1 year replacement warranty
Each driveshaft is individually tested on YFCM's proprietary machine. They are spun to over 8000rpm as a complete assembly.
Installation Procedures
The installation of the YFCM carbon driveshaft was relatively straight forward - it has mission-critical information and validation steps.
M. Lee @ YFCM Composites Technologies
Made in Taiwan
M. Lee is the man behind YFCM Composites Technologies and the patent holder to the signature technological innovations.
He also operates an industrial automation company in Taiwan. He used his knowledge to develop proprietary stress testing equipment specific to automotive carbon tube applications.
YFCM has been the manufacturer all along for the MFactory V2 that was acclaimed by M3 V8 owners for years.
I documented at length how I uncovered MFactory's V3 fraud, ultmately discovered YFCM, and brought back the lauded V2 product.
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