6PSI - 19PSI BOOST PULLEY UPGRADE KIT HOLDEN L67 SUPERCHARGED 3.8L V6

3.5" (9 PSI) TO 3.3" (11 PSI) BOOST PULLEY UPGRADE KIT COMES WITH THE BELT AND CAN BE PURCHASED THROUGH ANOTHER LISTING.

6PSI - 20PSI BOOST PULLEY UPGRADE KIT TO SUIT HOLDEN L67 SUPERCHARGED 3.8L V6

Vehicle Fitment: Calais VS VT VX VY, Commodore VS VT VX VY, Caprice VS WH, Monaro V2, Statesman VS WH WK

Our Mace L67 supercharger boost upgrade kit comprises of a special modular hub, pulley size of your choice from 3.8" (6PSI) to 2.55" (19PSI) and a free loan of our factory pulley removal/installation tool (additional $160 refundable bond required).

Our boost upgrade kits are a cost effective way to bump up the performance of your factory supercharged V6 Commodore by increasing boost pressure.

Our pulleys are made from aircraft grade aluminium, which have been hard anodized so they won’t break or wear out.

Caution: We do not recommend fitting a pulley smaller than 3.4" (10PSI) on a stock supercharged V6. Excessive boost pressure may induce knock and potential engine damage. A physically smaller pulley can only be used when the motor is intercooled, cammed and dyno tuned or has a combination of all 3. 98 octane fuel must be used when installing an aftermarket supercharger pulley.

Please contact us if you have any questions or concerns regarding this warning.

Part Numbers: PLY618 PLY619 PLY620 PLY621 PLY622 PLY623 PLY624 PLY625 PLY626

Please confirm which part number you require during checkout by utilising our vehicle fitment guide and parts guide in the above images.

Delivery:

• You may receive an address confirmation email in the event our database is unable to verify your delivery address.
• Goods may take up to 10 working days to arrive depending on stock levels. Please contact us directly if you have concerns with your order.

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