Pro Xe X750 B9 Audi S4 S5 3.0t EA839 Hybrid Turbo Upgrade

Pro Xe Automotive X750 EA839 Hybrid Turbo Upgrade

Audi B9 S4 / S5 3.0T

The Pro Xe Automotive X750 Hybrid Turbo Upgrade is the next step above our X600 package, designed for EA839-powered Audi S4 and S5 owners looking for a higher-output turbocharger capable of supporting serious power while still retaining OEM-style fitment.

Built around optimized OEM-based housings, the X750 features a larger 65/87mm 7+7 billet compressor wheel paired with a 67/58mm 9-blade cutback turbine wheel. This combination is engineered to provide significantly increased airflow capacity, improved top-end performance, and reduced turbine restriction compared to smaller hybrid options.

To support the higher airflow and shaft speed demands of this setup, the X750 is equipped with ball bearing internals for improved durability, reduced friction, and stronger response under high-load conditions. The result is a turbocharger package capable of supporting up to 750 horsepower with proper tuning, fueling, and supporting modifications.

The X750 is ideal for built EA839 setups, ethanol-based builds, roll racing applications, and customers looking to maximize the factory-location turbo platform without moving to a full custom large-frame conversion.

Turbocharger Specs

• Supports up to 750 HP with proper supporting modifications
• 65/87mm 7+7 billet compressor wheel
• 67/58mm 9-blade cutback turbine wheel
• Ball bearing internals
• CNC-machined and optimized OEM-based housings
• Increased compressor flow capacity
• Reduced turbine restriction
• Designed for high-output EA839 applications

Features

• Next step up from the Pro Xe X600 turbo
• Larger high-flow billet compressor wheel
• Upgraded 9-blade cutback turbine wheel
• Ball bearing center section for improved response and durability
• CNC-machined factory-style housings
• Direct-fit factory-location turbo upgrade
• Retains OEM-style fitment and compatibility
• Designed for pump gas, ethanol blends, or full E85 setups with proper supporting modifications
• Built for aggressive street, roll racing, and high-horsepower daily driver applications

Performance Benefits

• Higher horsepower capability over the X600
• Stronger top-end airflow
• Improved high-RPM power potential
• Broader and more efficient powerband
• Reduced backpressure compared to smaller turbine setups
• Strong transient response for its size
• Excellent option for customers looking to push the EA839 platform further

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
• Built engine recommended for higher-output applications

The Pro Xe Automotive X750 EA839 Hybrid Turbo Upgrade is built for enthusiasts who want to take the B9 S4/S5 platform beyond a basic hybrid setup and into serious high-horsepower territory while keeping a clean, OEM-style turbo configuration.

Lead Time

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