Swap Tuning

Swap TuningReviving a tired chassis, replacing a blown engine, or building the ultimate sleeper.Unlock Performance and Flexibility with Immobilizer Delete and Swap Tuning for VW and Audi ECUsEngine swaps are a rite of passage for die-hard VW and Audi enthusiasts. Whether you're reviving a tired chassis, replacing a blown engine, or building the ultimate sleeper, swaps unlock a world of performance potential. But there’s one roadblock that often stands in your way: the factory immobilizer system.We eliminate that problem.With over two decades of experience, we’ve helped customers combine engines and platforms without fighting electronic limitations. Our Immobilizer Delete and ECU Swap Tuning Services let you focus on the build, not the barriers. We configure OEM ECUs to bypass immobilizer lockouts, allowing your new powertrain to communicate seamlessly with the vehicle’s existing electrical systems, gauge clusters, ABS modules, CAN accessories, and more all without triggering faults or limp mode.Understand the Immobilizer Problem — And How We Solve ItVW and Audi’s factory anti-theft systems electronically pair the ECU with the key, instrument cluster, and other modules via the CAN bus. When you attempt an engine swap using a different ECU or components, the system detects a mismatch and prevents the engine from starting. The wiring may be perfect. The engine may be flawless. But the immobilizer will still brick your swap unless you disable it.That’s where we come in.How We Disable the ImmobilizerOur Immobilizer Delete (IMMO Off) service removes this roadblock at the software level. We reprogram your ECU to ignore immobilizer signals, enabling the engine to run independently from the donor vehicle’s security system. We don’t use generic files. Our team applies EEPROM editing, checksum correction, and advanced flash tuning tailored to your specific ECU generation and software.Supported ECUs and PlatformsWe support a wide range of OEM ECUs, including:

Bosch ME7, MED9, and MED17 series

SIMOS 18.1, 18.6, 18.10

Motronic-based ECUs (ME7.5, ME7.1, ME7.1.1)

VW Mk4, Mk5, Mk6 platforms (1.8T, 2.5L, 2.0T, VR6)

MQB platforms (1.8T, 2.0T, 2.5T)

TDI platforms (2.0TDI, 3.0TDI)

Audi 3.0T (EA837), 4.0T (EA842)

Not sure if we support your ECU? Send us your part number — we’ll confirm compatibility.Go Beyond IMMO Delete — Customize with Swap TuningImmobilizer delete is just the first step. Many swaps need fine-tuning to work flawlessly. That’s why we also offer Swap Tunes, fully customized to each build. Our swap tunes can include:

Emissions system removal (off-road use only)

Secondary air injection (SAI) delete

EVAP delete

Rear O2 delete and catalyst efficiency disabling (off-road use)

MAP/MAF scaling

Idle and rev limiter adjustments

CAN bus tweaks for full gauge cluster integration

We don’t do cookie-cutter tuning. Whether you're dropping a 1.8T into a Mk2 Golf or a 3.0TDI into a Jeep Gladiator, we make sure the ECU behaves like it came from the factory that way.
Note: It's important to note that swap tunes may not comply with state emissions laws. You should consult your local state regulations regarding engine swaps.Why Stick with the OEM ECU?Aftermarket ECUs have their place, especially in high-horsepower motorsport builds. But they come with high costs, added complexity, and steep learning curves. Getting factory-level integration with features like cruise control, ABS, and a working cluster can be a challenge. OEM ECUs offer the best balance: reliability, integration, and performance, all without breaking the bank.See It In Action: Our 1000HP Audi S3 BuildAt our Canadian headquarters, we’re proving the limits of OEM tuning with our drag build Audi S3. We swapped out the stock EA888.3 2.0T for a 3.6L VR6 from a Passat R36, paired it with a DQ500 transmission from an RS3, and run it all on a Bosch MED17 ECU from a VW Atlas. We’re targeting 1,000 HP using a Garrett G42-1200 Compact turbo, MPI, and flex fuel all controlled by OEM electronics. No standalone ECU. No compromises.We’ve developed proprietary software patches for boost control and aftermarket fueling showing what’s possible when you push OEM ECUs to their full potential.If You Can Dream It, We Can Tune It.We take the hassle out of engine swaps so you can focus on performance. Whether you're a shop looking to simplify complex builds or a weekend warrior tackling your first swap, we’ll help bring your vision to life.Open a Ticket and get started on your dream build.