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If you want to use one of our super dooper awesome clutch fans on your RB/VG series motor then you will need to use one of these billet aluminium adapters. The PCD, bore size and the offset all differ from the SR to the RB/VG but this adapter is hub centric and leaves only a 2mm offset variance when compared to your standard RB/VG clutch fan with the standard clutch. Ie. it means that the fan will sit 2mm’s closer to the radiator when using our clutch fan with this adapter.
Our clutch fan is a proven performer with over 800 satisfied customers using these on the SR20’s and compared to the RB/VG clutch fan you will see an increase in the air flow of around 40% which is easily noticeable the second that you install the fan.