Workhorse Performance Kits

Workhorse W20-W22 01-03 Performance Package Stage 1

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

$754.99

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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:..

$754.99

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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:..

$1,853.99

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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: $1,129.99

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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: $2,254.99

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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: $4,253.99

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Workhorse W24 Performance Package Stage 1

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

$880.00

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Workhorse W24 Performance Package Stage 2

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

$880.00

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Workhorse W24 Performance Package Stage 3

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

$1,979.00

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