Precision Tuning. Extreme Performance.
Professional XDF Files, WinOLS Mappacks, Tuning Files & Training for Serious Tuners
Unlock the full potential of cars, motorcycles, trucks, agricultural, and marine vehicles with expertly structured tuning solutions built for accuracy, power, and efficiency.
Clean definitions, smarter workflows, and real support — built for speed and precision.
XDF that actually makes sense
Clear map names, correct axes, correct units, clean structure. No guessing.
From “BIN” to “Tune-Ready”
We turn raw files into organized definition files so you can work immediately.
Functions you can control
Speed & rev limiters, EGR solutions, and other common tuning requests—set up the right way.
Learn the logic behind the maps
Training + technical breakdowns so you understand what you change and why it works.
Definition Engineering (XDF)
We build definitions that reveal the real calibration—engine + gearbox maps included.
Legacy Revamp
Old definitions updated with missing maps, proper scalings, and corrected axis data.
Switches & Strategies
Custom calibrations for specific features and limiters—built for consistent results.
Knowledge Transfer
Technical insights and training designed for tuners who want to level up.
Custom XDF on Demand
Send your file/ECU info → receive a tune-ready XDF built for your project.
Repair & Upgrade Existing Definitions
We clean broken XDFs, fix conversion values, and add the maps that matter.
Special Requests Supported
Popular limiter edits and function solutions prepared in a clear, tunable format.
Support That Actually Helps
We don’t disappear after delivery—ask questions, get answers, move forward.
XDF Creation
Custom definitions for cars, bikes, trucks, agriculture, and special vehicles.
Modernized Definitions
Bring older XDFs up to today’s standards with complete mapping and proper scaling.
Advanced Functions
Feature control and limiter tuning—delivered cleanly and professionally.
Training & Insights
Understand ECU/TCU strategies, map roles, and tuning methods—step by step.
We don’t just deliver XDF files. We deliver engineering support, calibration insight, and professional-grade tuning guidance — from first flash to final run.
Fully documented. Fully invoiced.
Learn MoreHow it works?
Send your original (or tuned) file read from the vehicle and include all technical information you have.
Email: info@xtremexdf.com or use our contact form.
We review your request and send the best option (XDF / WinOLS mappack / tuning file / training) with a secure payment link.
We deliver your tune-ready definition file. Open it in TunerPro and start editing maps cleanly, with correct axes and conversions.
Our database is constantly updated — if you don’t see your ECU, contact us.