I understand this or something similar (135is or 550i) can be used on a 2016-2018 340i with manual transmission. Its supposed to be stronger than the stock clutch. My question is the description states this is for a dual mass flywheel only and I cannot locate information regarding 340i having a single or dual mass flywheel. Will this work with the 340i?

The F30 340i has a dual-mass flywheel.

Will this fit a 2018 340i?

This will not fit a 2018 340i.

Will this work on stock oem flywheel

Yes.

I heard a lot of problems with the alignment tool and I am wondering will this alignment tool fit good on a 2012 e92 n55 335i.

The alignment tool is fine for an N55 car since the pilot bearing sits in the crank. The alignment tool is only an issue for N54 cars where the pilot bearing sits on a nub on the flywheel (requires a different alignment tool).

Will this fit a 2012 e92 335i n55 engine

Yes, per the fitment guide this fits all 2012 BMW 335i models regardless of chassis/body type.

Will this clutch work on a 2014 335i Xdrive?

No.

How much torque can this clutch kit handle?

This clutch kit is estimated to handle 10% more torque than stock.

Will this fit on my 2016 340i xi? Been looking for a clutch due to slippage from running stage 2 and have been suggested this clutch by a lot of people

No, this clutch kit will not fit your vehicle.

Is the stock setting for the engagement point suppose to be high or low for a BMW 335i?

This clutch kit will fit and feel just like stock.

Can this clutch go on a 2009 bmw 335i automatic transmission ? With the stock flywheel.

No. An automatic transmission car does not have a dual-mass flywheel or a clutch/pressure plate assembly. Automatic transmission cars use a flexplate/torque converter and clutch packs are inside the transmission which is hydraulically controlled.