[stefmiesterb]

I'm trying to figure out OEM clutch options for higher horsepower/torque MT cars after reading some unpleasant reviews of the aftermarket clutch options.

We know the 335is/135is/550i clutch is a great bolt on upgrade for e92 335i cars.

So knowing:

2015 335i (F30)
OEM Clutch kit PN: 21208631999

and

2010 335i (E92)
OEM Clutch kit PN: 21208631999

and

2013 335is
Clutch: 21207603248

2013 550i
Clutch: 21207603248

Theoretically the 335is/135is/550i clutch should bolt up to F30 cars? Please poke holes in my logic. Also xDrive uses the same clutch as RWD. PNs from getbmwparts.com, ecstuning.com and realoem.com

[donkey]

I'm still on stock clutch but have read a few times that 335is/135is/550i clutch will bolt right up.

[sonicsonic]

335is clutch is ok for both rwd and xdrive. I am using it on my f30 335i xdrive

Looking to try flywheel and clutch from M2/M4

[stefmiesterb]

thank you for the responses

[bluef32]

Stefmiesterb, did you go with the 335is/550i clutch? If yes, can you give me a summary on the performance and fit? I'm tuned with a catted dp, making 400hp and 441tq at the crank so the 335is/550i clutch should be able to hold down the power. My clutch is slipping and I need to get a replacement soon. The only aftermarket options I see available for the 435ix are Spec, Big bend, and Clutch masters. What kind of clutches do the members here recommend and have installed in your manual 435ix?

[JaredG_F30]

How many miles on your clutch? I'm making slightly more power to the crank and have 72k on the car. My ultimate car maintenance program is about to expire so I'm thinking of trying to get my clutch replaced under the maintenance program which would be at no cost to me. I may be able to talk my SA into letting me pay the difference for the 550 clutch upgrade.

Originally Posted by bluef32

Stefmiesterb, did you go with the 335is/550i clutch? If yes, can you give me a summary on the performance and fit? I'm tuned with a catted dp, making 400hp and 441tq at the crank so the 335is/550i clutch should be able to hold down the power. My clutch is slipping and I need to get a replacement soon. The only aftermarket options I see available for the 435ix are Spec, Big bend, and Clutch masters. What kind of clutches do the members here recommend and have installed in your manual 435ix?

[MineralF30]

I swapped out my OEM clutch for the 550i clutch back in February and I havent had a single problem so far. It grabs really well and the pedal is maybe 10-20% stiffer than the stock clutch in my opinion. Currently making around 500whp and it is still going strong

[MineralF30]

I'd also recommend replacing the oem flywheel if you're going to be underneath there swapping clutches. I went with the Spec SMFW because I had just bought the car and didn't know how long the oem flywheel had been inside the trans. Needless to say it was burnt the hell up, probably would've failed on me a few months later.

[bluef32]

Originally Posted by JaredG_F30

How many miles on your clutch? I'm making slightly more power to the crank and have 72k on the car. My ultimate car maintenance program is about to expire so I'm thinking of trying to get my clutch replaced under the maintenance program which would be at no cost to me. I may be able to talk my SA into letting me pay the difference for the 550 clutch upgrade.

I've 52k miles on the 435ix and I got it with 45k miles. I'm thinking if the 335i clutch bolts right up to the 435i then the 550i clutch should work, I don't know if it does. Maybe the M4 clutch could work

[bluef32]

Originally Posted by MineralF30

I'd also recommend replacing the oem flywheel if you're going to be underneath there swapping clutches. I went with the Spec SMFW because I had just bought the car and didn't know how long the oem flywheel had been inside the trans. Needless to say it was burnt the hell up, probably would've failed on me a few months later.

Nice, that's pretty solid at 500whp. That's a good point, I might as well replace the flywheel while getting the clutch done. How is the Spec SMFW for daily driving and how loud is the chatter with the AC on/off?

[MineralF30]

Originally Posted by bluef32

Nice, that's pretty solid at 500whp. That's a good point, I might as well replace the flywheel while getting the clutch done. How is the Spec SMFW for daily driving and how loud is the chatter with the AC on/off?

Honestly, SMFW chatter isn't as bad as people think. With A/C on yes, it does chatter very loud and especially when you're accelerating in the higher gears, but it's nothing you won't get used to. When you have music playing it drowns most of the noise out. I was scared to make the switch due to the chatter but I got used to it within a week.

That's the only downside to having a single. Plus they're about the same price for a new oem DMFW and a Spec SMFW so it was a no brainer for me to just switch it.

Daily driving feels the same because it revs a lot more freely too

[cjlane]

I went Spec stage 2+ with Spec steel SMFW. As Mineral said, it is most noticeable when accelerating in higher gears from 1500-2000rpm. The chatter when sitting usually isnt too bad. You definitely do get used to it.

Noise aside, the clutch feel is great and I am very happy with it.

[JaredG_F30]

The 335is and 550 clutch is the same part number, 21207603248, and bolts right up. It's literally plug-n-play.

https://www.fcpeuro.com/products/bmw...603248#fitment

Originally Posted by bluef32

I've 52k miles on the 435ix and I got it with 45k miles. I'm thinking if the 335i clutch bolts right up to the 435i then the 550i clutch should work, I don't know if it does. Maybe the M4 clutch could work

[bluef32]

Originally Posted by JaredG_F30

The 335is and 550 clutch is the same part number, 21207603248, and bolts right up. It's literally plug-n-play.

https://www.fcpeuro.com/products/bmw...603248#fitment

If it doesn't fit, I'm coming for you Jared! JK. After reading this, I ordered the 335is/550i clutch. It will be installed this Monday. I'll update everyone on how it fits.

[JaredG_F30]

LOL...good luck. Interested in your review

Originally Posted by bluef32

If it doesn't fit, I'm coming for you Jared! JK. After reading this, I ordered the 335is/550i clutch. It will be installed this Monday. I'll update everyone on how it fits.

[ali820]

Subbed as well.

How many miles (with tune) until this is required?

DIY or shop?

[Jeff@TopGearSolutions]

335is is a good upgrade for an OE clutch but if you're FBO and more you'll want do go aftermarket, Spec Stage 2+ is the most popular. You can mate with OE DMFW or Spec SMFW. SMFW does have a little rattle noise. A lot of that nose can simply be reduced by raising the idle in a tune.

[bluef32]

Originally Posted by ali820

Subbed as well.

How many miles (with tune) until this is required?

DIY or shop?

I got it tuned after the 50k mark. The clutch was slipping before the mods but I didn't realize it at the time.

It will be installed at the shop that did my tune.

[ali820]

Originally Posted by bluef32

I got it tuned after the 50k mark. The clutch was slipping before the mods but I didn't realize it at the time.

It will be installed at the shop that did my tune.

How much will it cost roughly, parts and labor?

I'm only at 30k miles but have a feeling will need this soon after the tune.

[JaredG_F30]

I"m at 72,000 miles, have been tuned for 24,000 and still on stock clutch. I don't drag race much so never dump the clutch but I do drive spirited 90% of the time.

[bluef32]

Its going to cost me roughly $2350 for; tax and labor, 335is/550i clutch, OEM flywheel, transmission and differential fluid flush. I think the previous owner of my 435ix dumped the clutch a lot or something, because its too early to be getting a new clutch at 52k miles. I think you'll be good for at least another 20k miles on the stock clutch with the tune. I heard the Xdrive is a pain to work on compared to RWD. My car should be done by Wednesday.

[codestar]

I posted a few logs with what I suspected might be a slipping clutch. PTF unfortunately didn't have much input other than telling me my octane isn't that good and gave me the ACN map. Still seems to be slipping so I've been getting quotes for the 335is clutch.

The few shops that I have spoken to all seem a bit leery on installing a clutch for a different platform car because of fitment, pressure plate depth, additional hardware, etc.

Definitely interested in getting this done in the next couple weeks. Just haven't decided on a spec clutch or 335is paired with the dual mass