Description
Upgrade your 1.8T engine for serious power gains with the Integrated Engineering Intake Manifold, designed specifically for transverse 1.8T 20V engines using a 60mm throttle body. This is the only true motorsport-engineered intake manifold available for this platform—built for maximum flow, improved turbo response, and dyno-proven horsepower increases of up to 90+ HP.
IE's manifold is not a modified stock design—it's a fully re-engineered solution optimized using advanced CFD software. The result: resonance-tuned runners, flow-matched velocity stacks, and a generously sized plenum designed to feed your cylinders more air and power across the entire RPM band.
Whether you're chasing mid-range torque or high-end horsepower, this manifold delivers performance gains you can feel—while keeping turbo lag to a minimum.
Key Features
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Up to 90HP Gains – Proven performance with GT28 or larger turbos
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Optimized for 60mm Throttle Body – Ideal for mild to moderate performance setups
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Flow-Tested Bellmouth Runners – Velocity stacks designed for max cylinder fill
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Modular Reversible Plenum – Flexible throttle body positioning (left or right)
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Minimal Turbo Lag – Runner tuning preserves low-end responsiveness
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Precision Cast in the USA – Machined from high-grade self-aging alloy
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Includes IE Micro Vacuum Manifold – Clean, organized vacuum source integration
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Direct fit for Large & Small Port Cylinder Heads – Use IE adapter for small port applications
Designed for Flexibility & Performance
Unlike hand-welded sheet metal manifolds, this cast aluminum design allows precise runner geometry and plenum volume, tuned for ideal airflow across the 1.8T’s entire powerband. The modular design enables easy throttle body placement on either side of the bay, simplifying intercooler plumbing in custom turbo configurations.
The included IE Micro Vacuum Manifold provides all necessary vacuum ports for blow-off valves, gauges, fuel pressure regulators, and more—without clutter.
Vehicle Fitment
Compatible with transverse 1.8T 20V engines (large or small port) in the following models:
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Audi TT (MK1 8N) 2000–2006 – 1.8T 20V*
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Audi A3 / S3 (MK1 8L) 1996–2003 – 1.8T 20V*
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VW Golf / GTI (MK4) 1999–2005 – 1.8T 20V
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VW Jetta / Jetta GLI (MK4) 1999–2005 – 1.8T 20V
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VW Beetle (1C/9C/1Y) 1998–2011 – 1.8T 20V*
*Some applications may require:
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Windshield washer reservoir relocation
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Custom intercooler piping adjustments
Required Hardware
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IE Large Port to Small Port Adapter Kit – Required for small port cylinder heads (sold separately)
