Pro Xe X600 B9 Audi S4 S5 3.0t EA839 Hybrid Turbo Upgrade

Pro Xe Automotive EA839 Hybrid Turbo Upgrade

Audi B9 S4 / S5 3.0T

Introducing the Pro Xe Automotive Hybrid Turbo Upgrade for the EA839-powered Audi S4 and Audi S5. Built for enthusiasts looking to push the factory single-turbo 3.0T platform beyond stock limitations, this upgrade delivers increased airflow, stronger top-end power, and improved overall performance while retaining fast spool, OEM-style fitment, and street-friendly drivability.

Each Pro Xe EA839 hybrid turbo is built using genuine OEM-based turbocharger housings that are CNC-machined and optimized to accept a larger, high-flow wheel combination. This upgrade features a 58/76mm billet aluminum 11+0 compressor wheel paired with a 60/55mm turbine wheel, creating a responsive yet highly capable turbocharger package designed to support up to 650 horsepower with proper tuning and supporting modifications.

Unlike large-frame turbo conversions that often sacrifice spool and drivability, the Pro Xe EA839 Hybrid Turbo is engineered to maintain strong transient response while significantly increasing airflow capacity. The result is a broader, more efficient powerband with improved midrange torque, stronger high-RPM performance, and excellent street manners.

Turbocharger Specs

• 58/76mm billet aluminum 11+0 compressor wheel
• 60/55mm turbine wheel
• CNC-machined OEM-based housings
• Optimized compressor and turbine flow paths
• Designed to support up to 650 HP with proper supporting modifications

Features

• OEM-based hybrid turbocharger upgrade
• Upgraded billet compressor wheel
• Upgraded high-flow turbine wheel
• CNC-machined and optimized factory housings
• Increased airflow efficiency
• Reduced turbine restriction
• Faster response compared to many large-frame turbo options
• Direct bolt-on installation
• Retains factory-style fitment and compatibility
• Designed for pump gas, ethanol blends, or full E85 setups with proper supporting modifications

Performance Benefits

• Increased horsepower capability over the factory turbo
• Stronger midrange torque
• Improved top-end power
• Broader and more efficient powerband
• Improved high-RPM airflow
• Excellent balance of spool, response, and peak power
• Ideal for aggressive street builds, roll racing, and high-performance daily drivers

Recommended Supporting Modifications

• ECU and TCU tuning
• Upgraded intercooler
• High-flow intake system
• Upgraded downpipe/exhaust system
• Ethanol fueling upgrades for maximum power potential
• Proper spark plugs and maintenance items

The Pro Xe Automotive EA839 Hybrid Turbo Upgrade is ideal for Audi S4 and S5 owners looking to transform their B9 platform into a serious sleeper without losing the refinement, response, and drivability that make these cars so capable from the factory.

Lead Time

Typical turnaround time is approximately 7–8 business days. Contact Pro Xe Automotive for current production lead times.