Item no: 230189

1.8T 20V Top-Mount Exhaust Manifold Gen.2 – Up to 700 hp

The new Gen.2 top-mount exhaust manifold for the popular 1.8T 20V engine was developed specifically for high-performance turbo conversions and motorsports. Thanks to its flow-optimized 4-1 design and generous 48 mm channels, this high-performance exhaust manifold enables power outputs of up to 700 hp while improving turbocharger response.

Maximum performance for 1.8T turbo conversions

Unlike conventional forced-induction exhaust manifolds, the Gen.2 exhaust manifold features a modern 4-to-1 design. This allows exhaust gases to flow more efficiently, resulting in faster turbo response and significantly more power and torque even in the mid-range.

The flow-optimized 48 mm cross-sections significantly increase exhaust flow and create ideal conditions for high-performance Garrett, Turbosmart, Tial, or Precision turbochargers.

High-quality 1.4849 cast stainless steel – motorsport quality

For maximum durability under extreme thermal loads, the exhaust manifold is manufactured from heat-resistant cast stainless steel 1.4849. This high-quality material offers:

• Heat resistance up to approx. 1100 °C

• High strength and elongation at break

• Extreme durability in motorsports

• Perfect for high boost pressures and continuous operation

The special alloy of chromium, nickel, molybdenum, niobium, and other high-quality components makes 1.4849 the ideal choice for high-performance turbo exhaust manifolds in racing and performance applications.

Universal turbocharger compatibility

Thanks to the 3 adapter rings included in the package, the top-mount exhaust manifold is flexibly compatible with numerous turbochargers:

• Garrett

• Turbosmart

• Tial

• Precision Turbo

(relative to the respective exhaust side)

The adapter rings enable easy and clean integration of various turbocharger setups.

Advantages of the Gen.2 Top-Mount Exhaust Manifold

• Significantly improved responsiveness

• More power and torque in the mid-range

• High exhaust flow thanks to 48 mm channels

• Suitable for up to approx. 700 hp

• Robust motorsport construction

• Manufactured from 1.4849 cast stainless steel

• V-band flange 76 mm

• Optimal foundation for big-turbo conversions on the 1.8T 20V

Technical Specifications

• Engine: 1.8T 20V

• Type: Top-Mount Exhaust Manifold Gen.2

• Material: Cast stainless steel 1.4849

• Channel cross-section: 48 mm

• V-band flange: 76 mm

• Exhaust manifold bolt pattern: 39.36 mm

• Power range: up to approx. 700 hp

Scope of delivery

• Top-Mount Exhaust Manifold Gen.2

• 3 adapter rings for various turbochargers

Note

Depending on the design of the turbo actuator, it may be necessary to remove a small amount of material from the valve cover to ensure sufficient clearance.

The 1.8T 20V Top-Mount exhaust manifold Gen.2 is the perfect choice for ambitious turbo conversions, motorsport projects, and high-performance 1.8T setups with maximum flow and optimal response.