11-23-2023, 10:18 AM | #67 |
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11-23-2023, 11:39 AM | #68 |
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Are you looking for the roll stiffness delta in nm/radian? Curious as to what calcs you're looking to do.
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11-24-2023, 05:32 PM | #69 | |
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Add a 32mm Lightweight Tubular Adjustable Front Anti-Roll Bar ... This anti-roll bar is adjustable from 57% to 103% stiffer than the stock bar. |
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01-11-2024, 09:19 PM | #70 |
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Just installed the 30mm H&R sway bar on my xdrive M3. I measured the stock one and it’s about 22-23mm in the middle, and increases in diameter as you move outward.
Just sharing here since I did not find a reference for the diameter of the stock bar on xdrive cars when researching before. Hopefully that’s useful! Excited to see how the new one performs. |
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01-18-2024, 04:19 PM | #71 | |
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How dose the handling change on the car? Is it a worthy upgrade over stock?
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01-18-2024, 05:23 PM | #72 | |
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It's worth noting though that I added camber plates at the same time, so obviously those played a role in these changes as well. |
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02-03-2024, 10:58 AM | #73 | |
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02-03-2024, 05:28 PM | #74 |
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You’re correct, subframe needs to be dropped to do the rear. Just put H&R on mine and can confirm. Have not driven since install so can’t comment on differences. But can say that the weight of the H&R is significant over the stock bars. Guessing they’re solid.
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02-08-2024, 05:48 PM | #75 | |
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Also, chime in with your H&R experience! |
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02-08-2024, 05:54 PM | #76 |
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First trackday back (since the one last week got cancelled) is the 24th. Hoping that one doesn’t get cancelled but I’ll report back for sure.
Full disclosure, I did not install the bars. I paid the Motorsports shop here in Austin to do it. They’ve done almost everything on my car. But dropping the subframe for first time is probably a big job. Not to mention the alignment needing to be done after. The front should be relatively easy though. I’m guessing that if you paid a shop around you with experience doing it they’d probably charge for 6 hours of labor and I’m not even sure that would cover the alignment after. So if you do it, consider doing anything else to the rear that you’d ever considered. |
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04-14-2024, 12:59 AM | #77 |
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G8X Rear Anti-roll bar
Here is what I was able to find for the rear. Says it fits:
This product fits 20 vehicle variants. BMW: 8 models, 20 variants between 2021 and 2023. M3 Comp. M xDrive Sedan M3 Comp. M xDrive Wagon M3 Competition Sedan M3 CS Sedan M3 Sedan M4 Comp. M xDrive Coupe M4 Competition Convertible M4 Competition Coupe M4 Coupe https://parts.bmwnorthwest.com/p/BMW...relatedProduct Here is the H&R front and rear set. There is a guy in the BMW G87 M2 2023+ FB group that is putting these on his 2024 G87. I would imagine they would fit the G8X M3/M4 etc. https://www.h-r-shop.com/h-r-set-of-...-p-606169.html |
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04-23-2024, 08:21 AM | #78 | |
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So if I get this right, you are saying that G80 xdrive comp has different front sway bar compare to g80 cs While in the rear share the same part number ? Am I right? |
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04-23-2024, 11:25 AM | #79 |
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