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...by 3 Bar Racing Inc.

Product Image Upgrade Spring for the MK I Boost Controller

Upgrade Spring for the MK I Boost Controller

$9.00


The upgrade spring is offered for those with an early MKI (original boost controller) that cannot reach the boost level they are looking for.  This gives you the spring that is now standard in our MKII TDI Boost Controller.  If you have a gray colored spring, this is an upgrade.  If your spring is shiny, like chrome, you already have the new spring.