Stage 3 — The Ultimate Evolution for Your 2009–2015 Audi A4/A5 2.0T (B8/B8.5)

Exclusively Tuned by Boost Dynamic Tuning — Maximum Output, Maximum Thrill

Stage 3 is where your 2.0T stops playing in the shallow end and goes full deep-end performance. With fueling upgrades, ethanol blend capability, and our most aggressive calibration yet, you’ll experience ferocious acceleration, unmatched throttle response, and a turbo that feels like it’s hardwired to your right foot.

We don’t do “safe guesses” or off-the-shelf maps. Every Stage 3 file is built and refined in-house, backed by over 11 years of calibration experience and tested in real-world conditions and on the dyno. This is power with purpose — engineered for those who want nothing short of domination.

Why Stage 3 Is Next-Level

• Peak Gains: Up to 345 HP / 390 TQ on the factory turbo

• E40/E85 Flex Capability: More power, cooler temps, bigger smiles

• Track-Grade Response: Minimal lag, instant torque, brutal mid-range pull

• Remote Tuning Convenience: Flash from home via OBDII

• Built for Enthusiasts: Aggression, refinement, and reliability in one package

BDT Stage 3 Highlights

• Optimized Boost & Torque Delivery

• Speed Limiter Removed

• Torque Limiters Raised

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

• Increased LPFP & HPFP Pressure

• E40/E85 Fueling Options

• Aggressive Overrun/Crackle in Dynamic Mode

• Sharper Throttle Response & Reduced Turbo Lag

• Linear, Predictable Powerband Across All Gears

• Flashable via OBDII — No Shop Visit Needed

Aggressive Crackle Pops (Overrun Feature)

This isn’t your subtle Stage 1 burble — Stage 3 overrun delivers hard, race-inspired pops and crackles on decel or free-rev, especially when paired with a performance exhaust. The system is still safely calibrated to protect your hardware while turning every tunnel and overpass into your personal symphony hall.

Boost Control Mastery

The factory boost curve is inconsistent and lazy. Stage 3 transforms it into a razor-sharp, predictable powerband:

• Faster spool and zero hesitation

• Smooth, controlled boost rise

• Unrelenting pull across the rev range

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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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