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Old 10-19-2025, 05:02 PM   #1
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2001 997 gt3 brake booster upgrade

Can anyone confirm that this is a direct bolt in for the 2001 base model year? I have seen different things saying that different adapters and in line valves are required but I believe these are for PSM cars only? If I have no PSM then it’s a direct swap?

Thanks

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Old Yesterday, 03:35 PM   #2
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Alex, I believe that the upgrade is for the GT3 master cylinder Not the booster.
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Old Today, 01:52 AM   #3
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It does not work as a direct swap, as one connection is M12x1 and the other M10x1 on the BMC of a 986/996. On the 997, both connections are M12x1, but there are adapters for this.
Edit: 996 355 910 40 is genuine

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