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efrtysx started a topic For Sale: Mason Engineering X-Brace Subframe Reinforcement

in e46 Parts For Sale/Want to Buy

02-01-2026, 07:54 PM
Mason Engineering X-Brace Subframe Reinforcement

RIP John Mason. He was truly a master craftsman, super helpful, and respectful individual. Really glad I got to meet him. Thanks to his incredible creation...

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Last edited by efrtysx; Yesterday, 07:37 PM.
efrtysx started a topic Subframe RACP

in E46 (2001 - 2006)

11-13-2025, 08:16 PM
Subframe RACP

Hello everyone! I had some issues with my subframe (RACP) As you all know it’s a weak point for the E46 M3. I tried to look for a e46 m3 chassis with...

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E46m3zcp started a topic Do solid/poly subframe bushings help or make worse the cracking issue.

in E46 (2001 - 2006)

06-14-2023, 08:42 AM
Do solid/poly subframe bushings help or make worse the cracking issue.

Hi, I know this is a debatable topic. I want to see what are the theories out there. I'm particularly interested in diving deeper into the topic and hearing...

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Last edited by E46m3zcp; 06-14-2023, 09:09 AM.
E46m3zcp started a topic 2006 M3 seems to have RACP reinforced from factory

in E46 (2001 - 2006)

08-07-2022, 03:58 PM
2006 M3 seems to have RACP reinforced from factory

I am aware this has been discussed many times and the consensus is that all cars are prone to cracking. I was about to fill my cavity with structural...

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Last edited by E46m3zcp; 08-07-2022, 04:28 PM.