Manual ECU Tuning & Tested SCR DPF EGR Solutions

HEXTUNE LLC specializes in manual ECU tuning, ECU file service, and SCR, DPF, EGR solutions for cars, LCVs, trucks, and heavy machinery.

We provide tailored truck & heavy machinery ECU tuning as well as car & LCV ECU remapping, delivering performance, reliability, and complete control.

Every file is manually crafted, tested in real-world conditions, and trusted by professionals across Europe for precise, dependable results.

No registration required – just upload your file and we’ll get back to you with a manual ECU tuning solution tailored to your case.

Manual ECU Tuning & File Services for Trucks, Cars and Heavy Machinery

Manual ECU Tuning for trucks, heavy machinery, and off-road vehicles

Every Byte is Manual. Every Solution is Built with Experience.

We don’t resell or recycle files — each ECU tuning solution is handcrafted, tested, and tailored for optimal performance, whether it’s for trucks, heavy machinery, cars, or LCVs.

Stage 1 and 2 tuning icon

Stage 1 / 2 Tuning

Safe and tested performance upgrades with controlled torque, smoke balance, and fuel efficiency. Custom tuned per vehicle — never copied.

Emission Solutions exhaust icon – EGR DPF SCR AdBlue off

Emission Solutions

EGR, DPF, SCR and AdBlue OFF solutions for trucks and industrial machinery — verified on-road and off-road. Stable, clean, and effective.

Manual ECU editing icon – WinOLS byte-level mapping

Manual Editing

Every bit is manually edited in WinOLS. No automatic software. Full byte-level control ensures reliable results tailored to your needs.

Reliable ECU support icon – DTC and custom code removal assurance

Reliable Support

We offer fast, honest and knowledgeable support before and after tuning. Whether it’s a technical question, a custom request or a last-minute issue — we’re here to help, with full attention and care..

How It Works

From upload to delivery — here’s how we handle every file with care and precision.

Upload

Upload your file and vehicle details securely through our form.

Analysis

We review the file manually and identify the safest tuning method.

Solution

A handcrafted, byte-level tuned file is prepared in WinOLS.

Delivery

You receive a tested solution — no automation, just experience.

No shortcuts. No guesswork. Just reliable solutions, every time.

Send your file confidently.

No account needed. Just upload your ECU file with your vehicle details and we’ll get back with a precise, manual solution tailored to your request.

Send Your File Now

Proven Results. Trusted Feedback.

Frequently Asked Questions

Clear answers. No fluff. Just what you need to know before uploading your file.

How can I send my file to you?


Will you always be able to provide a solution?


Is DTC removal included in your solutions?


What if you're not 100% sure about the best solution for my file?


Can I get a refund if I’m not satisfied?


I’ve submitted my file — how long does it take to receive the solution?


How does the payment process work?


Do you guarantee a solution for every file?


What happens if I upload the wrong file?


Do I need to create an account on the site?


I’ve uploaded my file but have a special request or note. How can I share that with you?

Why Manual ECU Tuning Is Still the Gold Standard

At HEXTUNE, we focus on manual ECU tuning to ensure reliable, safe, and customized solutions for every engine.

Why HEXTUNE?

Because tuning isn’t just about modifying data — it’s about understanding, logic, and trust.

Consistency

Our solutions follow clear standards and structured logic — ensuring consistent quality for every file.

Transparency

No secrets. We always explain what has been done, how it works, and what you can expect.

Responsiveness

We respond quickly and precisely. Whether it's technical support or a last-minute request — we're here to help.

Partnership

We don’t just work for you — we work with you. Your success is our success.