Hybrid Turbocharger Systems For B9 Audi A4

The TurboSystems Hybrid Turbocharger for the Audi B9 A4 is the hardware foundation of the iE Stage 3 build ecosystem. Developed as a validated component of the complete iE Stage 3 package — not a third-party part dropped into an untested calibration — this turbo erases the factory airflow ceiling and delivers a serious performance increase while retaining the fast spool, street character, and daily usability the B9 A4 platform is known for. 

Note:  Stage 3 ECU Tune and TCU Tune required

FROM SPORTY TO HOLY $#%!

The iE B9 A4 / A5 Hybrid Turbo by Turbosystems erases the factory airflow ceiling to deliver a serious performance jump for your longitudinal 2.0T. This direct bolt-in hardware turns a quick car into a relentless powerhouse without sacrificing daily usability.

FEATURES

SPOOL WITHOUT THE WAIT 

Budget hybrid turbochargers often trade street feel for top-end numbers — sluggish off the line and only exciting when fully wound out. The TurboSystems design uses a ball-bearing CHRA that maintains fast boost onset, with full boost arriving in the low 3,000 RPM range. The B9 A4 retains its punchy, responsive street character while gaining a substantially expanded performance ceiling. 

RELENTLESS TOP-END PULL 

Larger, more efficient compressor and turbine wheel geometry pushes the B9 A4’s performance to a level the factory hardware cannot approach, maintaining strong power delivery through the full RPM range where the stock turbo runs out of capability. 

HIGH-RPM FLOW WITHOUT BIG-TURBO TRADE-OFFS 

The turbine housing design is specifically balanced to reduce exhaust backpressure without the throttle response penalty typical of larger turbine housings. Strong top-end pull. Fast spool. The engaging, responsive street character of the platform preserved. 

Tech Specs: 

• Upgraded billet compressor wheel for maximum efficiency and flow 

• Enlarged high-flow turbine wheel for reduced backpressure and improved top-end power

• Precision CNC-machined IS38-based compressor and turbine housings 

• Dual ceramic ball bearing — long-term durability in sustained high-output use

• Designed specifically for the Audi B9 A4 2.0T (longitudinal engine) 

• Stage 3 ECU Tune and TCU Tune required 

• High-Flow Intake, B9 A4 Charge Pipes, and High-Performance Intercooler recommended