Knowledgebase: GENERAL ENQUIRIES
I am interested in purchasing a V6 Boost Upgrade Kit (6psi - 19psi), my motor is a standard L67 3.8 Supercharged motor on a 2003 Holden Calais. What I want to know is what size pulley should I get without having to do any other modifications? I am looking
Posted by MACE Support on 30 April 2018 09:28 AM
Assuming your car is dead standard and are running 98 octane fuel, then the highest pulley I would go for would be 10psi pulley

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