This 25% Under drivebalancer kit increases horsepower by reducing parasitic power loss from driving engine accessories including alternator, power steering and air conditioning.

This kit includes Powerbond SFI Race harmonic balancer to give unbeatable strength and durability on the street or race track, a smaller diameter harmonic balancer which reduces inertia for faster engine acceleration and a full set of all metal NULINE heavy duty idler pulleys with high speed bearings, premium performance poly V drive belts for quiet running and minimum belt slip.

Contents:

• 1 X 25% Underdrive race performance balancer
• 1 X Ribbed idler/tensioner pulley
• 2 X W-profile polyrib belt (4PK, 6PK)
• 2 X Flat idler/tensioner pulley

​Vehicle Fitment Guide

Note: Please check the AC belt length and number of pulleys if your vehicle build is near the changeover years.

This 25% Underdrive balancer kit increases horsepower by reducing parasitic power loss from driving engine accessories including alternator, power steering and air conditioning.

This kit includes Powerbond SFI Race harmonic balancer to give unbeatable strength and durability on the street or race track, a smaller diameter harmonic balancer which reduces inertia for faster engine acceleration and a full set of all metal NULINE heavy duty idler pulleys with high speed bearings, premium performance poly V drive belts for quiet running and minimum belt slip.

Contents:

• 1 X 25% Underdrive race performance balancer
• 1 X Ribbed idler/tensioner pulley
• 2 X W-profile polyrib belt (4PK, 6PK)
• 2 X Flat idler/tensioner pulley

​Vehicle Fitment Guide

Note: Please check the AC belt length and number of pulleys if your vehicle build is near the changeover years.

This 25% Underdrive balancer kit increases horsepower by reducing parasitic power loss from driving engine accessories including alternator, power steering and air conditioning.

This kit includes Powerbond SFI Race harmonic balancer to give unbeatable strength and durability on the street or race track, a smaller diameter harmonic balancer which reduces inertia for faster engine acceleration and a full set of all metal NULINE heavy duty idler pulleys with high speed bearings, premium performance poly V drive belts for quiet running and minimum belt slip.

Contents:

• 1 X 25% Underdrive race performance balancer
• 1 X Ribbed idler/tensioner pulley
• 2 X W-profile polyrib belt (4PK, 6PK)
• 2 X Flat idler/tensioner pulley

​Vehicle Fitment Guide

Note: Please check the AC belt length and number of pulleys if your vehicle build is near the changeover years.

This 25% Underdrive balancer kit increases horsepower by reducing parasitic power loss from driving engine accessories including alternator, power steering and air conditioning.

This kit includes Powerbond SFI Race harmonic balancer to give unbeatable strength and durability on the street or race track, a smaller diameter harmonic balancer which reduces inertia for faster engine acceleration and a full set of all metal NULINE heavy duty idler pulleys with high speed bearings, premium performance poly V drive belts for quiet running and minimum belt slip.

Contents:

• 1 X 25% Underdrive race performance balancer
• 1 X Ribbed idler/tensioner pulley
• 2 X W-profile polyrib belt (4PK, 6PK)
• 3 X Flat idler/tensioner pulley​

​Vehicle Fitment Guide

Note: Please check the AC belt length and number of pulleys if your vehicle build is near the changeover years.

This 25% Underdrive balancer kit increases horsepower by reducing parasitic power loss from driving engine accessories including alternator, power steering and air conditioning.

This kit includes Powerbond SFI Race harmonic balancer to give unbeatable strength and durability on the street or race track, a smaller diameter harmonic balancer which reduces inertia for faster engine acceleration and a full set of all metal NULINE heavy duty idler pulleys with high speed bearings, premium performance poly V drive belts for quiet running and minimum belt slip.

Contents:

• 1 X 25% Underdrive race performance balancer
• 1 X Ribbed idler/tensioner pulley
• 2 X W-profile polyrib belt (4PK, 6PK)
• 3 X Flat idler/tensioner pulley​

​Vehicle Fitment Guide

Note: Please check the AC belt length and number of pulleys if your vehicle build is near the changeover years.

This 25% Underdrive balancer kit increases horsepower by reducing parasitic power loss from driving engine accessories including alternator, power steering and air conditioning.

This kit includes Powerbond SFI Race harmonic balancer to give unbeatable strength and durability on the street or race track, a smaller diameter harmonic balancer which reduces inertia for faster engine acceleration and a full set of all metal NULINE heavy duty idler pulleys with high speed bearings, premium performance poly V drive belts for quiet running and minimum belt slip.

Contents:

• 1 X 25% Underdrive race performance balancer
• 1 X Ribbed idler/tensioner pulley
• 2 X W-profile polyrib belt (4PK, 6PK)
• 3 X Flat idler/tensioner pulley​

​Vehicle Fitment Guide

Note: Please check the AC belt length and number of pulleys if your vehicle build is near the changeover years.

This 25% Underdrive balancer kit increases horsepower by reducing parasitic power loss from driving engine accessories including alternator, power steering and air conditioning.

This kit includes Powerbond SFI Race harmonic balancer to give unbeatable strength and durability on the street or race track, a smaller diameter harmonic balancer which reduces inertia for faster engine acceleration and a full set of all metal NULINE heavy duty idler pulleys with high speed bearings, premium performance poly V drive belts for quiet running and minimum belt slip.

Contents:

• 1 X 25% Underdrive race performance balancer
• 2 X W-profile polyrib belt (4PK, 6PK)
• 2 X Ribbed idler/tensioner pulley
• 3 X Flat idler/tensioner pulley

​Vehicle Fitment Guide

This 25% Underdrive balancer kit increases horsepower by reducing parasitic power loss from driving engine accessories including alternator, power steering and air conditioning.

This kit includes Powerbond SFI Race harmonic balancer to give unbeatable strength and durability on the street or race track, a smaller diameter harmonic balancer which reduces inertia for faster engine acceleration and a full set of all metal NULINE heavy duty idler pulleys with high speed bearings, premium performance poly V drive belts for quiet running and minimum belt slip.

Contents:

• 1 X 25% Underdrive race performance balancer
• 2 X W-profile polyrib belt (4PK, 6PK)
• 2 X Ribbed idler/tensioner pulley
• 3 X Flat idler/tensioner pulley

​Vehicle Fitment Guide

This 25% Underdrive balancer kit increases horsepower by reducing parasitic power loss from driving engine accessories including alternator, power steering and air conditioning.

This kit includes Powerbond SFI Race harmonic balancer to give unbeatable strength and durability on the street or race track, a smaller diameter harmonic balancer which reduces inertia for faster engine acceleration and a full set of all metal NULINE heavy duty idler pulleys with high speed bearings, premium performance poly V drive belts for quiet running and minimum belt slip.

Contents:

• 1 X 25% Underdrive race performance balancer
• 2 X W-profile polyrib belt (4PK, 6PK)
• 2 X Ribbed idler/tensioner pulley
• 3 X Flat idler/tensioner pulley

​Vehicle Fitment Guide

Dayco's complete performance pulley upgrade kit for the HSV GEN-F 6.2-litre LSA engine includes all components needed by technicians, performance tuners or do-it- yourself enthusiasts to gain more boost. These kits use premium quality, purpose engineered and locally manufactured components.

Contents:

• 1 X Poly Rib 'W' profile serpentine belt
• 1 X Powerbond overdrive balancer (5%-28%)
• 1 X Idler relocation bracket (if applicable. See note)

Vehicle Fitment Guide

Parts Guide

Please select the part number you require from the drop down menu by utilizing our fitment guide and parts guide.

Notes:

• The modified balancer included in these kits changes the geometry of the original belt drive. Dayco® recommends this balancer to be installed by a professional technician.
• For overdrive balancers that enable 22 percent or more overdrive boost, an idler pulley relocation bracket is required for extra clearance.
• The LS9 balancer runs the supercharger on the main belt drive (11PK belt) so it is different to the LSA. These kits are not compatible.