DD84 GM Gen III/IV Professional Workflow Bundle
Build a repeatable GM Gen III/IV tuning workflow from project intake through startup, diagnostics and transmission planning.
The DD84 GM Gen III/IV Professional Workflow Bundle combines three complete digital toolkits into one organized system for serious builders, mobile tuners and performance shops.
Bundle price: $149.99 — save $29.98 compared with purchasing the three toolkits separately.
Best for
- Independent tuners who need consistent intake, logging and documentation
- Performance shops working on LS swaps, cam swaps and GM driveline combinations
- Builders who want one organized workflow instead of scattered notes and spreadsheets
Three complete DD84 toolkits included
- LS Swap Startup Toolkit: intake, pre-start inspection, scanner setup, controlled first fire and diagnostic workflows
- Cam Swap Scanner & Diagnostic Pack: idle, fuel, spark, airflow, wideband and misfire logging and review
- Transmission Calibration Calculator: tire, gear, road speed, shift RPM, next-gear RPM, converter and TCC planning
Complete bundle contents
- Professional workflow overview guide
- Branded PDF guides and quick-start documents
- Excel workbooks and interactive calculators
- CSV scanner-channel checklist
- Vehicle and modification intake sheets
- Mechanical, electrical and calibration-readiness checklists
- First-fire and datalog review forms
- Diagnostic flowcharts and next-action documentation
- Single-user professional license
Recommended workflow
- Complete project and customer intake.
- Verify mechanical, electrical and calibration readiness.
- Perform a controlled first fire.
- Capture structured idle, fuel, spark and driveline data.
- Plan transmission and TCC changes using calculated relationships.
- Document each revision, result and next action.
Delivery and file formats
This is a digital ZIP package delivered electronically by Down Dirty 84 LLC after purchase. No physical product is shipped. The bundle contains PDF, XLSX and CSV files. Compatible PDF and spreadsheet applications are required.
License and limitations
This version is licensed to one purchaser for personal or internal professional use. It is not the multi-user commercial shop license. No HP Tuners software, credits, licenses, controller unlocks, completed tune files, vehicle-specific tuning or emissions-defeat instructions are included.
Using these tools across customer vehicles inside your business? Purchase the DD84 Professional Shop License for one-business commercial-use rights.
Redistribution, resale, sharing, sublicensing, public posting, transfer and white-labeling are prohibited. HP Tuners and VCM Suite are trademarks of HP Tuners LLC. Down Dirty 84 LLC is not affiliated with or endorsed by HP Tuners LLC.