2017 - 2021 Audi B9 S4 3.0t Stage 2 (Remote Tune)

Our Stage 2 Tune is everything you’ve been looking for to wake up the potential of your turbocharged 3.0L v6 S4. BDT offers high quality custom performance calibrations guaranteed to unlock your vehicle's full potential. Whether you’re on the go or at home, with the ease of a remote tune, we ensure a quick and stress free software install.

Be ready for a reliable everyday commute or a launch down the drag strip at any time!

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BDT STAGE 2 TUNE FEATURES

- Increased Horsepower and Torque Gains

- Speed Limiter Removed

- Neutral/Park Rev Limiter Raised (TCU Tune Required)

- Auto-Start/Stop Defaults to Off (Still Active)

- Torque Limiters Raised

- Fueling Requested Changed (Depending on Throttle Position)

- Stock Boost Gauge Calibrated to Display Higher Boost

- Increased Overrun/Crackle (In Dynamic Mode)

- Engine VE remapped for a Smooth Power Curve

- Boost Control Refined for a Linear boost onset 

- Turbocharger Lag Reduced

- Low Pressure Fuel Pump Pressure Increased

- High Pressure Fuel Pump Pressure Increased

- Variable Valve Timing Recalibration

-E40/E85 Fueling Options Available

- OBDII Port Flashing

B9 S4 3.0T STAGE 2

Boost Dynamic Tuning’s Stage 2 ECU calibration methodically increases performance power with gains up 460HP & 525TQ, without any sacrifice in drivability or reliability. BDT’s cutting-edge calibration design efficiently and safely maxes out the factory turbocharger’s potential. Allowing you to give those unsuspecting Hellcat victims a run for their money and leaving them with a bruised ego. 

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CRACKLE POPS

This calibration feature is also known as overrun. When decelerating from higher RPM’s or when free-revving in neutral or park you will hear what sounds like a crackle pop coming from your exhaust/downpipe (please note this will be hard to hear on factory exhaust setups).  Adding a little more “spice” to those already tasteful exhaust notes!

BOOST CONTROL 

From factory the ECU boost control is delivered in a bumpy uneven boost curve, resulting in a slow boost response. This can be felt when performing long pulls utilizing the vehicle's entire powerband.  BDT’s Stage 2 ECU Tune refines and smooths this boost curve to achieve crisp unmatched power delivery when pushing your car to the limit. 

VE CALIBRATION

Volumetric efficiency (VE) is how well a motor can move air/fuel in and out of its combustion chamber, the higher the efficiency, the more of air/fuel can be converted to torque and power. The B9 3.0t factory engine calibration shows a significant drop in torque and power around 3000 RPM due to the VE of the stock engine. BDT’s Master Calibrator removed this drop completely rather than just simply tuning around the drop or attempting to raise factory torque maps to compensate. This results in more power and torque using the ECU’s factory control strategy. 

POWER GAINS

ECU TUNE MODIFICATION REQUIREMENTS

SOFTWARE INSTALLATION REQUIREMENTS

**  PLEASE NOTE, IF YOU SCHEDULE AN APPOINTMENT WITH US TO FLASH YOUR TUNE, AND YOU ARE LATE WITH NO CONTACT, THERE WILL BE A $50 LATE FEE APPLIED. IF YOU NEED TO RESCHEDULE YOUR TUNE, YOU MUST CONTACT US AT LEAST AN HOUR BEFORE YOUR APPOINTMENT, OR THERE WILL BE A $50 FEE APPLIED. **

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