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05-12-2023, 10:21 PM | #1 |
New Member
26
Rep 25
Posts |
Stock vs M3 thrust arms on 135i, need some input
Long story short, I have a bad front right thrust arm. The lower control arms are significantly newer than the thrust arms (at least from what I can tell). Are the M3 thrust arms compatible with the 135i lower control arms or will they have incompatible geometry?
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05-13-2023, 10:01 AM | #2 |
Private First Class
80
Rep 111
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I believe the odd looking arm (the furthest forward one) is identical to the regular 135, aside from the bushing. It should be compatible with the standard setup, just stiffer. It is the other arm that changes the geometry slightly, and also stiffens the front.
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05-17-2023, 09:54 AM | #4 |
First Lieutenant
270
Rep 367
Posts |
The M3 thrust arm is compatible. I had them on my car along with the M3 control arms. The M3 thrust arms add steering feel and precision along with better front end stability during heavy braking. However they do increase NVH. With the shitty roads I drive on I had to switch them back to stock. If you have decent roads where you live I’d recommend them.
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05-21-2023, 04:20 PM | #5 |
New Member
26
Rep 25
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I absolutely don't have good roads by me haha! But I already have a decent set of coilovers, urethane bushings in a couple places, a previous owner did the M3 rear subframe bushings, so I might as well. I already have the M3 thrust arms in as of a couple hours ago and in the last week the ball joint boots on the control arms have went, so I'll probably be getting M3 control arms in very very soon.
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