[ashmostro]

Anything is possible, but this is likely one of those cost-prohibitive situations.

DHP is nice, but non-DHP isn't problematic either. I prefer linear predictability so I am happy with non-DHP. It's a personal choice rather than a clear one is better than the other.

[admranger]

Did you try to add a little negative camber to the front and set the front toe in to closer to zero?

[Boosted_8]

Originally Posted by admranger

Did you try to add a little negative camber to the front and set the front toe in to closer to zero?

0 adjustment for camber on the front. These are required :
https://r-parts-store.com/Hardrace-F...-Series-GT-G32

[matadore]

Originally Posted by Junebug85

I'm looking to fit the M5 sway bars to my 540i, along with the F90 rear cross member and x brace. My car is currently lowered on MSS.

When you say weight balancers, do you mean the vibration dampeners that can't be fitted to the M5 bars, or do you mean something else?

The bounce you mention, are you experiencing that while driving down the road or when your go over speed bumps? Have you considered upgrading your spring setup? Just thinking maybe the stock suspension is travelling alot hence the bounce where as on a lowered spring setup, it would travel less. I take it you have a M Sport model?

Yes, the vibration dampeners, not sure what they are called in English, they look like weights attached to the rear bar. The bounce happens whilst driving on the road, podholes as well. You barely notice it on speedbumps. Yes, I am with stock suspension, not an M sport model, just the Sport Line. It does not cause the bouncing though. So it's a side-to-side bumping noise from the sways I guess, otherwise the car is super comfy on front-to-back bumps and movement. I guess the stiffness of the sways does not allow for a lot of lateral movement in uneven road surfaces and it kind of makes it stiffer, especially at the back.

[admranger]

Originally Posted by Boosted_8

0 adjustment for camber on the front. These are required :
https://r-parts-store.com/Hardrace-F...-Series-GT-G32

No crash pins to remove so you can get 0.25-0.5 deg of neg camber? I've never looked on the G30 but even my 2019 X3 M40i has those so maybe?

[ashmostro]

My M550 has adjustable front camber...

[G30M]

Originally Posted by RoyB

I have an M340 and have about 1300 miles on my M550. Love everything about the M550, but coming from the M340 there are 2 things the M340 accel at.

1- Handling. The m550 feels like it under-steers badly. I realize I have more weight over the front axles, but when I drive them back to back, it's pretty noticeable.

2- Throttle response is significantly better on the M340.

I have the 19" Summer Runflats (Pilot Sport 4 ZP) on the M550, 275/245. I have Pilot Sport 4S non runflats on the M340, 235 square (19s) for comparison.

Would going to a wider front tire help under-steer? Stiffer sway bar? Programming? Almost wishing I had sprung for the rear steering now. The M340 is so twitchy in comparison.

Driving the M340 and the M550 back to back over 6 hours I can confirm mine and your assessment.

My only issue with the 550 is when flicking it around it's got too much lean. Otherwise (mine has DHP) it actually goes around corners better than my 340 thanks to DHP (and RWS).

Have you done anything and what was the result?

I'm thinking all mine needs is stiffer springs, I don't even want to lowered, thanks to the road conditions around here.

[G30M]

Originally Posted by RoyB

I have an M340 and have about 1300 miles on my M550. Love everything about the M550, but coming from the M340 there are 2 things the M340 accel at.

1- Handling. The m550 feels like it under-steers badly. I realize I have more weight over the front axles, but when I drive them back to back, it's pretty noticeable.

2- Throttle response is significantly better on the M340.

I have the 19" Summer Runflats (Pilot Sport 4 ZP) on the M550, 275/245. I have Pilot Sport 4S non runflats on the M340, 235 square (19s) for comparison.

Would going to a wider front tire help under-steer? Stiffer sway bar? Programming? Almost wishing I had sprung for the rear steering now. The M340 is so twitchy in comparison.

Throttle response - try reset throttle body adaptation manoeuvre.

Or you can install a throttle voltage trick device. It's just the way the throttle is programmed to not steal the M5's thunder

[Boosted_8]

Originally Posted by ashmostro

My M550 has adjustable front camber...

I would like to know how you adjusted the front wheels camber without lowering the car.