B5 S4 turbo inlet

Product Options  for B5 S4 turbo inlet

• Alpha Competition RS4 K04 Inlet Pipe Kit: This kit is designed to optimize the air supply to the engine and is an essential upgrade for those seeking better performance, according to Alpha Competition. It is specifically designed for use with K04 turbos.
• 034Motorsport SüperDüper Turbo Inlet Pipe: While some 034 products are designed for the B9 S4, they also offer inlets for the B5 generation. Reviewers noted that an intake and turbo inlet mod from 034 Motorsports resulted in an “amazing sound” and “a bit more boost throughout the power band” in a B5 S4, indicating a positive performance impact.
• VAST Aluminum Turbo Inlet Pipe Kits: VAST offers aluminum RS4 K04 turbo inlet pipe kits that are compatible with the B5 S4 and C5 A6 2.7T engines. These are durable aftermarket options.
• THE-RS4 / S4 B5 High Flow Upgrade Intakes: These upgrade intakes are designed with minimal welds and transitions to improve flow, and they also replace the potentially problematic “lobster claws” found in some stock/older designs, according to Sharp Motorsport. 

Key Considerations

• Turbo Compatibility: Standard S4 B5 models came with K03 turbos. Many aftermarket inlet pipes (like the RS4 K04-specific ones) are designed for the larger K04 turbos and will not fit K03s or other turbochargers without modification. Ensure you select the correct pipes for your specific turbo setup.
• Material: Inlets are typically made from aluminum (providing rigid, high-flow paths) or reinforced silicone (offering flexibility and durability).
• Performance Benefits: Upgraded inlets remove airflow restrictions, ensuring the turbocharger gets a steady and efficient supply of cooler, denser air, which can improve combustion and increase engine performance.
• Installation Tip: According to Sharp Motorsport, it is easier to mount the new inlet pipes to the turbos before mounting the turbos onto the exhaust manifolds