Quote:
Originally Posted by TopgunZ
The only way to safely use the pulley setups cupcakes is recommending is to upgrade the bearings in the head unit. If your sending it to vortech for the si trim then they won't upgrade bearings, just impeller. 928 can offer the bearings and impeller upgrade, albeit a different impeller then the one vortech uses.
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@rsingher, this is what TopgunZ is talking about
:
https://928motorsports.com/parts/super_vortech.php
In the images shown, you can get both the impeller & bearings upgraded by 928 from the link above -- just make sure you choose the right type before purchasing for the specific blower you have
