Description
Enhance the performance of your Audi B9 S4 3.0T with the Integrated Engineering (IE) Turbo Inlet Pipe Kit, the ultimate upgrade for stock and hybrid turbo setups. Designed to eliminate the airflow bottlenecks of the factory inlet, this precision-engineered, cast aluminum inlet pipe delivers up to 61.49% more airflow when paired with an IE cold air intake, making it the ideal foundation for ECU tunes, hybrid turbos, or future upgrades.
Key Performance Features
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23% More Flow Over Stock (Turbo Inlet Only)
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Up to 61.49% More Flow with IE Carbon Fiber Intake & Hybrid Turbo
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Up to 19 HP & 21 ft-lbs Torque Gain when combined with IE Intake
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4” Effective Inner Diameter Cross-Section
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CNC-Machined Cast Aircraft-Grade Aluminum
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Direct Bolt-On Fitment for Stock and Hybrid Turbos
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Billet Slip-Fit Retainer for Easier Installation
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Adaptable Design Supports Future Turbo Upgrades
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O-Ring Sealed Flanges Ensure Leak-Free Performance
Flow-Optimized Engineering
IE utilized advanced 3D scanning of the B9 S4 engine bay to maximize usable space while ensuring perfect fitment. The result? A massive internal diameter and smooth, turbulence-free geometry designed to dramatically improve turbocharger efficiency and throttle response.
Ready for Hybrid Turbo Support
Whether you're running the factory turbo or upgrading to a larger unit, the IE Turbo Inlet Pipe is ready. Its modular flange system includes CNC-machined, O-ring sealed adapter plates (sold separately) to support a wide range of turbochargers—ensuring your build stays future-proof.
Built for Real-World Performance
Made from aircraft-grade cast aluminum, each inlet is CNC machined in-house to exact tolerances for a perfect fit and flawless finish. The included billet slip-fit retainer simplifies the notoriously difficult lower bolt installation, saving time and frustration.
Included in the Kit
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IE Cast Aluminum Turbo Inlet Pipe
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IE Cold Air Intake Silicone Adapter (for IEINCK3)
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All necessary hardware for installation
Note: If using the stock airbox, the stock intake silicone adapter (sold separately) is required.
Vehicle Fitment
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Audi B9 S4 (2018–2024+) – 3.0T V6 Turbocharged
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Designed for use with IE Cold Air Intake (IEINCK3)
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Fits stock or most hybrid turbos with appropriate adapter
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May require modifications for non-IE brand intakes
Installation Notes
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Estimated Install Time: ~1 hour
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No cutting or permanent modifications required
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Basic hand tools recommended
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Installation on non-IE intakes is at your own risk and may require trimming
