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Spool is local to the shop I work at and I've installed several of these in client and shop employees cars as early adopters... nothing breaking news here. Its well and tested, just install the billet vacuum pump cover at the same time and you're good to go.
The covers are breaking with the 3x units due to the centrifugal force of the planetary gear set that forms the fundamental basis of the Helix units. We broke 2 vacuum pumps with the 4x units, but not with the 3x.
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