Header Exhaust Manifold Stainless Chrome for Audi S4/200 Quatro (1989-1997) with 2.2L L5 Turbo Engine

High-Flow Racing Turbo Manifold for the Audi 2.2L 20V Turbo (AAN / 3B Engine)

Who It’s For: Engineered for Audi S4, S6, and 200 Quattro owners running the legendary AAN or 3B 20-valve inline-five powerplant who want to unlock the true potential of their turbo system.

The Symptom: The factory exhaust manifold on the Audi 2.2L turbo engine is a notorious bottleneck. Designed for mass production and extreme sound dampening, the stock cast-iron manifold utilizes a restrictive "log" design. This creates massive backpressure as the exhaust pulses from all five cylinders collide in a cramped space before reaching the turbocharger. This turbulence increases Exhaust Gas Temperatures (EGTs) and causes significant turbo lag, making these heavy Quattro sedans and wagons feel sluggish until very high in the RPM range.

The Engineering Fix: This performance header replaces the heavy, restrictive factory cast with high-grade, mandrel-bent T304 stainless steel. By providing a more direct and smoother path for exhaust gases, we maximize the kinetic energy (enthalpy) directed at the turbine wheel. The tubular design ensures that exhaust pulses reach the turbo with minimal interference from neighboring cylinders. The result is a dramatic reduction in spool-up time and a significant increase in top-end flow, allowing your 2.2L engine to breathe as Audi intended for their racing variants.

Why Mechanics Choose This Kit

• Improved Volumetric Efficiency: Reduces pumping losses by allowing the engine to expel exhaust more freely, leading to a noticeable jump in horsepower and torque throughout the powerband.
• Rapid Boost Threshold: The streamlined runner design allows the turbo to reach target boost much earlier in the rev range, curing the off-the-line lag common in early K24-equipped Quattro models.
• Superior Metallurgy: Crafted from thick-walled T304 Stainless Steel with heavy-duty flanges to prevent warping and ensure a leak-free seal under the extreme heat of a turbocharged five-cylinder.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• 1992-1994 Audi S4 Base (Sedan) 2.2L Turbo
• 1995-1997 Audi S6 Base (Sedan) 2.2L Turbo
• 1995-1997 Audi S6 Avant (Wagon) 2.2L Turbo
• 1989-1991 Audi 200 Quattro Base 2.2L Turbo
• 1989-1991 Audi 200 Quattro 20v 2.2L Turbo
• 1989-1991 Audi 200 Quattro Avant (Sedan & Wagon) 2.2L Turbo

Interchange Part Numbers:

AUDI-S4-S6-200-QUATTRO-2.2L-TURBO-MANIFOLD, SS-CHROME-MANIFOLD-2.2L-L5, AAN-3B-EXHAUST-HEADER

The Performance Promise

Buy with confidence. Backed by real automotive experts and fast shipping. Upgrade your five-cylinder’s breathability and experience the legendary Audi turbo growl with peak efficiency.