ECU Tuning Features – Unlock More with VR Tuned
At VR Tuned, our goal has always been simple: give you the best tune the first time. Whether you’re looking for a Stage 1 daily driver upgrade, a Stage 2 bolt-on tune, or a Stage 3 full custom calibration, our ECU tuning delivers precise power and enhanced drivability. But we also go beyond just horsepower numbers.
With support for a variety of advanced tuning features (depending on your ECU type and vehicle model), VR Tuned offers a suite of performance and convenience options to fine-tune your driving experience exactly the way you want it.
Available ECU Tuning Features
Note: Not all features are available on every ECU. Contact us to confirm compatibility for your specific vehicle.
DTC OFF (Diagnostic Trouble Codes Disable)
Removes specific fault codes from your ECU that may trigger a check engine light (CEL) when using aftermarket components (like high-flow cats or catless downpipes). This is ideal for race or off-road vehicles running modified hardware.
Benefits:
- Eliminates unnecessary warning lights
- Prevents limp mode activation due to non-critical codes
- Ensures smoother operation with performance parts
VMAX OFF (Top Speed Limiter Removal)
Disables the factory-imposed top speed limiter, allowing your car to reach its true performance potential.
Perfect for:
- Autobahn or track-day enthusiasts
- Supercars and sports sedans with artificial speed caps
- Anyone looking for full power without restrictions
Pops & Bangs (Exhaust Crackle Tuning)
Customize the exhaust sound during deceleration with your choice of Soft (subtle burbles) or Brutal (loud cracks and bangs). Popular on turbocharged platforms with aftermarket exhausts.
Choose your style:
- Soft Mode – Civilized crackles during engine braking
- Brutal Mode – Loud, fiery backfire-style sounds for show and track
Cold Start OFF
Removes the high-RPM cold start routine typically designed to heat the catalytic converter quickly. When disabled, your engine starts more quietly — ideal for cars with aftermarket exhausts in residential areas.
Benefits:
- Quieter morning startups
- Less wear on performance exhausts
- Great for track or weekend-only cars
Start/Stop OFF (Auto Stop/Start Delete)
Disables the automatic engine shut-off at stoplights and in traffic. Enjoy a more consistent and responsive driving experience, especially in heavy city conditions.
Advantages:
- No more annoying engine restarts
- Extends starter and battery life
- Smoother stop-and-go driving
E85 Flex Fuel Conversion
Reprogram your ECU to support E85 ethanol fuel, enabling greater performance and efficiency. We fine-tune ignition, fueling, and cold start strategies for this high-octane fuel blend.
Why go Flex Fuel?
- Increased power and torque
- Cleaner combustion and reduced emissions
- Lower cost per gallon vs. pump gas
- More sustainable fuel solution
Exhaust Flap Control
Gain full control of your factory or aftermarket exhaust valve system. Choose when the exhaust stays open for aggressive sound or closed for stealth mode — no more relying on factory presets.
User benefits:
- Quieter cabin during cruising
- Aggressive tone on command
- More control over your car’s personality
Cylinder on Demand OFF (Eco Mode Disable)
Disables fuel-saving cylinder deactivation systems (e.g., Audi’s COD, GM’s AFM), keeping all cylinders active at all times. Ideal for drivers who want consistent power delivery and sound.
Benefits:
- No transition lag between 4-cylinder and full power
- Improved exhaust tone
- Smoother throttle feel under light load
Custom Tuning. Real Results.
These optional tuning features are in addition to our precision ECU remaps that already deliver:
- Increased horsepower and torque
- Better throttle response
- Optimized air/fuel ratios
- Smoother drivability and shift points (auto or DSG)
- Safe operating margins with factory protections retained
Every VR Tuned file is backed by our in-house calibration expertise and tested in real-world conditions for maximum reliability and performance.
Ready to Personalize Your Tune?
Whether you’re chasing lap times or just want your vehicle to feel more alive, VR Tuned gives you the tools to do it — safely and reliably.
Contact our tuning team to find out which features your vehicle supports and build a custom ECU tune tailored to your goals.
Explore our ECU tuning options by vehicle make and model to get started.
