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Discussion Starter #1
We replaced my brake booster hose (y pipe under plenum) with an updated aluminum and silicone hose assembly. It is made here in AZ by a local M5 owner, the old hose asembly was brittle and not sealing very tightly on the metal pipes.

While the plenum was off we cleaned the throttle blades, lubricated the throttle linkage, and addressed other small vacuum hoses.


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That's awesome! I love OEM+ mods. Any info on how to order the upgraded brake booster hose you used? And how difficult of a job is it?

This is another mod I'm adding to my (long) list for sure!
 

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Discussion Starter #11
Let us all know the condition of your old brake booster hoses when installing this new silicone and aluminum unit.
 
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