034-108-3010 - 034Motorsport Reinforced Silicone MAF Hose – Audi B5 S4 & C5 A6 2.7T

The 034Motorsport reinforced silicone MAF hose (Reference 034-108-3010) is designed to replace the stock hose between the Mass Air Flow sensor (MAF) and the Y-pipe on 2.7T biturbo engines of the Audi B5 S4 and Audi C5 A6/Allroad 2.7T. Directly inspired by the OEM part, it offers a perfect fit while improving airflow and reliability, ideal for engine tuning and vehicles running Stage 1, Stage 2, or higher.

Key Features

• Reinforced silicone MAF hose of high quality, specifically developed for 2.7T biturbo engines.
• Increased inner diameter and smooth internal surface for better airflow compared to the stock hose.
• Stiffer construction to prevent any risk of crushing or deformation under high load or strong vacuum.
• Faithful reproduction of the OEM geometry for perfect compatibility with the stock MAF and the 2.7T Y-pipe.
• Made from high-temperature automotive silicone for increased longevity and resistance in the engine bay.
• Supplied with new hose clamps for a clean and secure installation.
• Replaces the original reference OEM 078 129 627T.
• Discreet black finish, OEM+ look perfectly suited for clean setups.

Engine and Vehicle Compatibility

This 034Motorsport MAF hose 034-108-3010 is intended for the following vehicles:

• Audi S4 B5 2.7T biturbo – engine code APB – years 1998 to 2002 (approx.).
• Audi A6 C5 2.7T biturbo – engine code APB – years approximately 1999 to 2004.
• Audi Allroad C5 2.7T biturbo – engine code APB – same production years.

The hose is specific to APB engines. It does not have a breather/PCV fitting for newer versions: on these engines, the PCV connection can be simply plugged/capped if this hose is used.

Benefits for Tuning and Reliability

• Ideal for performance tuning based on the 2.7T biturbo (remapping, turbo upgrade, exhaust system, etc.).
• Reduces the risk of air leaks, cracking, or collapse of the aging stock hose.
• Contributes to more stable airflow to the engine, improving responsiveness and consistency of performance.
• Plug & play solution, perfectly suited for tuning shops and demanding enthusiasts.

Product Reference: 034-108-3010
Brand: 034Motorsport
OEM Replacement: 078 129 627T
Color: Black
Product Type: Reinforced silicone MAF hose for Audi B5 S4 & C5 A6/Allroad 2.7T APB