DD84 Professional Shop License – GM Tuning Toolkit

Turn the DD84 GM workflow system into an internal commercial process for one independent tuning business.

The DD84 Professional Shop License includes the complete GM Gen III/IV Professional Workflow Bundle plus documented one-business commercial-use rights, a license certificate, commercial terms and one year of eligible toolkit updates.

Built for

• Independent performance shops
• Mobile tuning businesses
• One-location calibration and diagnostic operations
• Businesses that need repeatable intake, startup, logging and driveline-planning documents for customer vehicles

Everything included

• Complete DD84 LS Swap Startup Toolkit
• Complete DD84 Cam Swap Scanner & Diagnostic Pack
• Complete DD84 Transmission Calibration Calculator
• GM Gen III/IV professional workflow overview
• PDF guides, Excel workbooks, calculators, checklists and review forms
• Commercial license certificate and written license terms
• One-business internal-use rights for unlimited customer vehicles
• One year of eligible toolkit updates
• Limited setup and package-orientation support

Commercial-use rights

The purchasing business may use the included workflows, forms and calculators internally while servicing customer vehicles. The license covers one business operating from one physical or mobile shop location.

License restrictions

• No resale, redistribution or sublicensing of source files
• No sharing with another business, contractor, franchise, branch or location
• No public posting or customer download access to editable source files
• No white-label resale, transfer or repackaging as another company’s product
• Additional businesses or locations require separate licenses

Delivery and file formats

This is a digital ZIP package delivered electronically by Down Dirty 84 LLC after purchase. No physical product is shipped. Files include PDF, XLSX and CSV formats. Compatible PDF and spreadsheet applications are required.

Important limitations

Vehicle-specific tuning, file review, calibration revisions, HP Tuners software, credits, licenses, controller unlocks and emissions-defeat instructions are not included and remain separate services or purchases.

Only need a single-user copy? Choose the DD84 GM Gen III/IV Professional Workflow Bundle.

License scope: one purchasing business, one physical or mobile shop operation. Perpetual use of the purchased version with one year of eligible updates.