Tuning Tools

WinOLS OLSX Projects

WinOLS OLSX Projects

Regular price $550.00 USD

Regular price Sale price $550.00 USD
GM 6.6 Duramax XDF Definition Files

GM 6.6 Duramax XDF Definition Files

Regular price From $50.00 USD

Regular price Sale price From $50.00 USD
RAM 6.7 Cummins XDF Definition Files

RAM 6.7 Cummins XDF Definition Files

Regular price From $50.00 USD

Regular price Sale price From $50.00 USD
Ford 6.7 Powerstroke XDF Definition Files

Ford 6.7 Powerstroke XDF Definition Files

Regular price From $50.00 USD

Regular price Sale price From $50.00 USD
DTC Toolbox

DTC Toolbox

Regular price From $60.00 USD

Regular price Sale price From $60.00 USD
20+ Ford 6.7 Export VBFs

20+ Ford 6.7 Export VBFs

Regular price From $300.00 USD

Regular price Sale price From $300.00 USD

Free Online Tuning Tools

Browser-based utilities from 4J Tuning designed to simplify common calibration and file conversion workflows.

Free Web Tool

XDF → EZ LYNK Converter

Convert TunerPro XDF definition files into an EZ LYNK-compatible Custom Configuration CSV directly in your browser. Upload your XDF, review the conversion, and download the finished CSV ready for import into EZ LYNK.

Open Converter →

No installation required.

Free Web Tool

VBF → BIN Converter

Convert Ford VBF files into binary format directly in your browser. Upload a VBF file, process the conversion, and download the resulting BIN for use in your calibration workflow.

Open Converter →

No installation required.

Tunes & XDF Files

tune@4jtuning.com

Send tune files, original reads, XDF-related files, order information, and tuning requests to this address.

Support & Questions

support@4jtuning.com

Use this address for product support, order questions, software assistance, licensing questions, and general inquiries.

Send Us a Message

Fill out the form below and we'll get back to you as soon as possible.

Item added to your cart

Collection: Tuning Tools

WinOLS OLSX Projects

WinOLS OLSX Projects

GM 6.6 Duramax XDF Definition Files

GM 6.6 Duramax XDF Definition Files

RAM 6.7 Cummins XDF Definition Files

RAM 6.7 Cummins XDF Definition Files

Ford 6.7 Powerstroke XDF Definition Files

Ford 6.7 Powerstroke XDF Definition Files

DTC Toolbox

DTC Toolbox

20+ Ford 6.7 Export VBFs

20+ Ford 6.7 Export VBFs

Free Online Tuning Tools

XDF → EZ LYNK Converter

VBF → BIN Converter

Get in Touch

Send Us a Message

Collection: Tuning Tools

Filter and sort

Filter

Free Online Tuning Tools

XDF → EZ LYNK Converter

VBF → BIN Converter

Get in Touch

Send Us a Message