The RED Package Bundle for Audi RS4 and RS5 B9/B9.5 2.9T delivers a complete performance upgrade including high-flow air intake, performance downpipes, Wagner Tuning intercooler, and Stage 1 or Stage 2 ECU tuning. Engineered for the EA839 twin-turbo V6 platform, this integrated system increases horsepower and torque, improves turbo response, reduces heat soak, and provides consistent 550–600+ HP performance while retaining factory turbochargers and daily drivability.
The RED Package Bundle for the Audi RS4 and RS5 B9/B9.5 is a fully integrated performance system engineered specifically for the 2.9T EA839 twin-turbocharged V6 platform.
Rather than isolated bolt-on parts, this package corrects the three primary airflow limitations of the factory setup:
• Intake restriction before the turbochargers
• Exhaust backpressure immediately after the turbines
• Charge-air temperature instability under sustained boost
Once these constraints are addressed, the ECU calibration optimizes boost control, ignition timing, and torque management across the entire powerband.
The result is a substantial increase in horsepower and torque, sharper throttle response, earlier turbo spool, and repeatable performance under aggressive driving conditions — all while preserving OEM refinement and daily drivability.
This is a balanced, engineered system built to extract the full potential of the factory turbochargers.
The factory intake system prioritizes noise reduction and emissions compliance. Under higher boost levels, it becomes a measurable restriction.
Upgrading the intake system reduces pressure drop before the turbochargers, allowing them to spool faster and operate more efficiently at elevated airflow demands.
AWE Carbon Fiber Intake System
A fully enclosed carbon fiber intake engineered for improved airflow while maintaining heat shielding. The carbon construction resists heat absorption and provides structural rigidity under high load. Designed to balance performance gains with refined induction acoustics.
Untd. Performance High-Flow Intake System
An open-flow performance intake designed to maximize volumetric efficiency and reduce airflow turbulence at higher boost pressures.
• +8–20 HP
• +8–18 lb-ft torque
• Faster twin-turbo spool
• Sharper throttle response
• Enhanced induction sound
While peak gains are moderate on their own, intake upgrades are critical for supporting Stage 2 boost levels and improved turbo efficiency.
The factory catalytic converters are positioned close to the turbochargers and create significant exhaust restriction. Reducing this backpressure allows the turbines to operate more efficiently, improving both spool characteristics and peak power potential.
Untd. Performance Catless Downpipes
Untd. Performance Catless with Integrated Heat Shielding
Untd. Performance 200-Cell High-Flow Catalytic Downpipes
Untd. Performance 200-Cell High-Flow with Integrated Heat Shielding
Provides maximum exhaust flow and the most aggressive performance gains. Designed for off-road use where regulations permit. Delivers the fastest spool and strongest top-end performance.
Balances performance and emissions considerations. Dramatically reduces restriction compared to OEM while maintaining a refined exhaust tone.
Integrated thermal shielding reduces radiant heat transfer into the engine bay. Power output remains unchanged but improves overall thermal management.
Compared to Stage 1 configuration:
• +25–50 HP increase
• +30–60 lb-ft additional torque
• Noticeably stronger mid-range pull
• Improved high-RPM power retention
On the EA839 2.9T platform, upgraded downpipes are the defining requirement for achieving full Stage 2 performance levels.
As boost pressure increases, charge-air temperatures rise significantly. During repeated acceleration runs or spirited driving, the factory intercooler can heat soak, leading to timing reduction and power inconsistency.
Upgrading the intercooler ensures stable intake air temperatures and preserves ignition advance under sustained boost.
Wagner Tuning Performance Intercooler System
Wagner Tuning intercoolers utilize high-density bar-and-plate core construction with optimized end tank geometry to maximize cooling efficiency while minimizing pressure drop. Engineered specifically for the EA839 platform, these systems improve charge-air distribution and maintain consistent airflow under high boost conditions.
• Maintains rated horsepower during repeated pulls
• Dramatically reduces heat soak
• Stabilizes boost pressure
• Supports full Stage 2 torque output
Intercooler upgrades do not independently increase peak horsepower but are critical for maintaining performance consistency — especially in warm climates or aggressive driving scenarios.
The ECU calibration is the core element that unlocks the performance potential of the upgraded hardware. Each calibration is engineered specifically for the EA839 2.9T architecture found in the RS4 and RS5.
(Compatible with Stock Downpipes)
Available Options:
• IE Performance Stage 1
• Jackal Motorsport Stage 1
• 500–530 HP
• 500–540 lb-ft torque
• +50–80 HP
• +90–120 lb-ft torque
Stage 1 significantly increases low- and mid-range torque, delivering stronger acceleration and improved throttle response while retaining factory catalytic hardware.
(Requires High-Flow or Catless Downpipes)
Available Options:
• IE Performance Stage 2
• Jackal Motorsport Stage 2
• 540–580 HP
• 560–600 lb-ft torque
• +90–120 HP over stock
• +140–170 lb-ft over stock
Provides aggressive mid-range torque and sustained top-end performance while maintaining balanced drivability.
• 560–600+ HP
• 580–630+ lb-ft torque
• +110–150 HP over stock
• +160–200 lb-ft over stock
Delivers maximum airflow efficiency and the most aggressive acceleration characteristics within the limits of the factory turbochargers.
With the RED Package Bundle installed:
• Turbo spool occurs earlier in the rev range
• Mid-range torque becomes dramatically stronger
• Acceleration feels immediate and forceful
• Throttle mapping becomes sharper and more precise
• Power delivery remains smooth and linear
• Performance remains consistent under repeated acceleration
The EA839 2.9T platform responds exceptionally well to airflow and calibration improvements, making the RS4 and RS5 B9/B9.5 among the most rewarding modern Audi performance vehicles to upgrade while retaining factory turbochargers.
Ideal for:
• Performance-focused daily drivers
• Enthusiasts targeting reliable 550–600+ HP capability
• Drivers seeking improved throttle response and mid-range acceleration
• Owners preparing for future hybrid turbo upgrades
• Those demanding consistent performance under real-world conditions
• Power figures vary based on fuel quality, elevation, climate, and drivetrain loss.
• Catless downpipes may not be emissions compliant for street use in certain regions.
• Professional installation is strongly recommended.
