Poly Bush and Suspenson Options

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Whiskey98
E30 Zone Newbie
E30 Zone Newbie
Posts: 1
Joined: Sat Sep 28, 2024 2:34 pm

Sat Dec 13, 2025 7:25 pm

Hi all,

Apologies if this is in the wrong board, I would't say there's any technical issues, just looking for recomendations.

I'm currently swapping my 1990 320i with a M54B30, 6 speed box and 3.15 lsd. I currently have no plans to take this car on the track or drifting, but I'm looking to make a street performance car that is also practical for everyday use.
I'm also upgrading the brakes with the mondeo caliper mod at the front, and 325i rear wishbones and discs at the rear. The steering rack is being swapped with an E46 clubsport.

I have little experience with suspension upgrades, and I'm looking for that balance between performance and everyday comfort.
The car already has 16" wheels, and the Bilstein B12 pro kit fitted by the previous owner shortly before I bought it. I have also opted for 70A poly engine and gearbox mounts. The large mounting bush at the rear of the differential is also poly, not sure what durometer that is however. I will be reinforcing the front subframe using the kits commonly available online, and the 325i wishbones will be reinforced in the typical places too. I'm also considering fitting a front strut brace.
Currently, the rest of the suspension is stock

So my question is, what kind of places would also be beneficial to poly bush to improve handling somewhat without making NVH too unbearable for everyday use? Which places should I keep rubber?
Would it be beneficial to go for a thicker front or rear anti-roll bar? Currently mine are completely stock.

Thanks very much!
Peter
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