Workhorse Performance Kits

Workhorse W20-W22 01-03 Performance Package Stage 1

Kit Contents: Ultrapower GM / Workhorse 8.1L Custom Tuning Part # UPGM Description:..

$744.99

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Workhorse W20-W22 01-03 Performance Package Stage 2

Kit Contents: Ultrapower GM / Workhorse 8.1L Custom Tuning Part # UPGM Description:..

$2,213.99

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Workhorse W20-W22 01-03 Performance Package Stage 3

Kit Contents: Ultrapower GM / Workhorse 8.1L Custom Tuning Part # UPGM Description:..

$3,312.99

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Workhorse W20-W22 04-10 Performance Package Stage 1

This kit is offered with an optional before and after DYNO run with printed graphs for comparison to..

Installed Price: $1,119.99

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Workhorse W20-W22 04-10 Performance Package Stage 2

This kit is offered with an optional before and after DYNO run with printed graphs for comparison to..

Installed Price: $4,943.99

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Workhorse W20-W22 04-10 Performance Package Stage 3

This kit is offered with an optional before and after DYNO run with printed graphs for comparison to..

Installed Price: $6,942.99

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Workhorse W24 Performance Package Stage 1

Kit Contents: Ultrapower GM / Workhorse 8.1L Custom Tuning Part # UPGMDescription:UltraP..

$870.00

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Workhorse W24 Performance Package Stage 2

Kit Contents: Ultrapower GM / Workhorse 8.1L Custom Tuning Part # UPGMDescription:UltraP..

$2,339.00

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Workhorse W24 Performance Package Stage 3

Kit Contents: Ultrapower GM / Workhorse 8.1L Custom Tuning Part # UPGMDescription:UltraP..

$3,438.00

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