VLMspec
VLMspec has developed calibrations for OEM engine and transmission control units since 2004.
Our founder started in depth vehicle modification in the late 90s, then moved into race team support and OEM level product development through the 2000s. As vehicles came to be defined by software rather than hardware, calibration became the focus in 2009. VLMspec has been a custom solution provider for OEM control units ever since, built on years of work with standalone and motorsport systems.
Today the primary focus is software / firmware for Engine and transmission calibration, the flash tooling that delivers it, and the engineering behind both. The hardware and development capability that built the company are still connected, backed by OEM level equipment and technical partners.
We work remotely with owners, shops and tuners worldwide.
Have questions? We have answers
Frequently Asked Questions & Policy
At VLMspec we want you to have an enjoyable and easy shopping experience from start to finish. To that end, we’ve compiled a FAQ list below which covers all of our most common questions - take a look! If there is something we’ve missed however, please send us an email and we’ll be happy to help.
Can I return purchases?
Contact info@vlmspec.com for an RMA number. Returns cannot be processed without one.
Hardware is subject to a 20% returned goods fee.
Software and calibration sales are refundable for 30 days unless the vehicle has been free flashed or unsecured files have been transferred to the customer.
Calibration work is non refundable once development has begun.
What if I am not satisfied with my tune after driving?
VLMspec works diligently to optimize every vehicle we calibrate. We offer unlimited revisions on a given hardware set. Often times a vehicle exhibiting issues will have a hardware malfunction. We will assist you with diagnosing these issues. in over two decades we have rarely had a system not function properly, even when working around major hardware issues. We will take the time with you that many other calibrators will not.
Where are you products available?
Everywhere. Calibration files, flash tooling and support are delivered remotely to clients anywhere in the world.
VLMspec operates from Incline Village, Nevada and Amsterdam, Netherlands.
How can I work for VLMspec or become a dealer?
We work with shops and tuners who sell calibration but would rather not develop it. Development level ECU and TCU work, delivered under your name. We are always interested to hear from quality partners, so don't hesitate to inquire.
***As of January 2026 VLMspec is actively seeking to add another software engineer or calibrator to the team.
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