E90 vs F80 Rear Hub: What's the Difference?

BMW
1

I’m trying to figure out the differences between the rear hub assemblies on the E90 and F80 BMW models.

I’ve heard that the F80 has some performance improvements and possibly better fitment for aftermarket parts, but I’m not sure how noticeable those differences are.

Questions I have:

  • Compatibility: Are the rear hubs interchangeable, or do I need specific parts for each model?
  • Installation Tips: If I’m looking to upgrade or replace them, what should I keep in mind?
  • Performance Enhancement: Has anyone experienced any noticeable differences in handling or stability after making this switch?

I’m looking to enhance my driving experience and am curious about any modifications or DIY projects others have undertaken with their BMWs. Any advice or shared experiences would be greatly appreciated!

1 Like
2

I’ve been comparing the rear hubs of the E90 and F80, and I noticed the F80 has improved materials that enhance rigidity. This might lead to better handling and durability. Anyone else observed this?

5 Likes
3

Great point, Tabitha! The weight distribution also seems to have changed, which impacts performance. The F80 feels lighter during turns.

4

I read somewhere that the F80’s rear hub has a larger diameter, which could improve the overall traction. Does anyone have actual experience with that?

5

Good observation! I’ve also noticed that the bolt pattern on the F80 is a bit different, allowing for a more stable connection.

6

The material quality in the F80 does seem to be superior. My friend swapped from E90 to F80 hubs and noticed a significant difference in stability during high-speed cornering.

7

That’s interesting! I wonder if the change in design affects the long-term maintenance of the vehicles.

8

Absolutely! There’s a clear evolution in the engineering behind these models. The F80 seems to be more performance-oriented.

9

Honestly, the F80 feels more planted due to its hub design, which makes a huge difference during spirited drives. Anyone felt the same?

10

I just found out that some F80 models use aluminum for the rear hub. This not only reduces weight but also enhances performance. Why didn’t they do this with the E90?

11

Good question! It’s likely due to cost and the focus Porsche had towards performance in the F80’s engineering.

4 Likes
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What’s interesting is how these design changes not only affect performance but also the vehicle’s aesthetics. The F80 looks impressive with its hub design!

13

Absolutely! Enthusiasts definitely appreciate that. Are the aftermarket options for the E90 better, or is it all about the F80 now?

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I think the E90 has its charm, but the F80’s advancements are hard to ignore. It’s like comparing a classic to a new model - both have their merits.

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For those who might still be on the fence: If you’re upgrading, I’d recommend considering the F80’s hubs for that performance edge. But I’ve seen E90 cars hold up well too!

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I’ve been looking into the E90 to F80 hub swap myself! From what I’ve found, they’re not directly interchangeable without some modifications.

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What kind of modifications are we talking about? Any specifics on the parts that need adjustments?

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I’ve heard some people say that the bearings might need to be changed when swapping hubs. It could add extra costs, though!

3 Likes
19

That’s interesting! Can you use the new F80 bearings with the E90 hubs, or do you just have to upgrade the whole setup?

2 Likes
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I agree! Has anyone actually completed this swap? I’d love to know what you faced during installation.