2.7L Allroad Audi RS4 B5 Turbo Inlet Pipes Black S4 K04

QUICK PRODUCT SPECIFICATIONS

AUDI B5 S4 / RS4 2.7T K04 TURBO INLET PIPE UPGRADE

The XS-POWER RS4-style K04 turbo inlet pipe kit is intended for Audi enthusiasts upgrading the 2.7-liter twin-turbo V6 platform. It is designed for the larger turbocharger inlet configuration associated with the K04-025 and K04-026 RS4-style turbo pair.

When upgrading an Audi B5 S4 2.7T from its original K03 turbochargers to RS4-style K04 turbochargers, the factory K03 inlet arrangement may no longer provide the required turbo inlet connection. Correctly matched inlet piping is an essential part of the conversion.

This kit provides four rigid aluminum inlet pipe sections, two silicone hose connectors and the associated sealing and installation accessories specified for the kit. The black heat-coated finish offers a clean, understated appearance that complements the Audi 2.7T engine compartment.

It is also relevant to owners maintaining or replacing RS4-style inlet piping on compatible B5 RS4 and C5 Audi A6 or Allroad 2.7T turbo configurations. Fitment is determined by the actual turbocharger inlet dimensions, engine layout and connecting components, rather than vehicle year alone.

WHY CHOOSE XS-POWER K04 INLET PIPES?

AUDI VEHICLE APPLICATIONS AND FITMENT

Designed for compatible Audi 2.7T twin-turbo V6 applications using RS4-style K04-025 / K04-026 turbochargers.

Year guidance: B5 S4/RS4, C5 A6 and Allroad production years vary by market. The original listing references 1997-2002, but that range should not be treated as universal fitment for every model. Later C5 A6 and Allroad 2.7T applications may also be relevant when equipped with the compatible K04 configuration.

DETAILED TECHNICAL SPECIFICATIONS

WHAT IS INCLUDED IN THE KIT?

One complete inlet pipe kit as described. Turbochargers, intercoolers, ECU software, fuel system upgrades and other Stage 3 conversion components are not included. Confirm exact accessory quantities against current inventory before publication.

WHY K04 UPGRADES NEED COMPATIBLE TURBO INLETS

The Audi 2.7T twin-turbo engine is widely used for K04-based performance conversions. The original K03 turbocharger arrangement and the RS4-style K04 arrangement do not necessarily share the same inlet connection dimensions.

For a successful upgrade, the turbocharger inlet pipes must match the turbo compressor inlet, connect correctly to the upstream intake system and clear nearby engine components. Correct fitment also helps prevent poorly seated couplers and unwanted unmetered air entering the intake tract.

The XS-POWER inlet pipe set is intended to address the inlet piping portion of this conversion. It does not by itself turn a K04 upgrade into a complete bolt-on package. Proper tuning, fueling, turbo hardware and other supporting components may be required.

INSTALLATION AND COMPATIBILITY CHECKLIST

1. Confirm that the vehicle has the Audi 2.7T twin-turbo V6 engine.
2. Identify the exact left and right turbocharger models.
3. Measure and verify both compressor inlet connections.
4. Compare the supplied pipe routing with the original intake arrangement.
5. Inspect silicone connectors, seals, O-rings and fittings before installation.
6. Confirm clearance around engine mounts, hoses, wiring and nearby heat sources.
7. Install all components without forcing pipe alignment or stressing turbo connections.
8. Check the intake system for leaks before operating under boost.

AUDI 2.7T K04 INLET PIPE FREQUENTLY ASKED QUESTIONS

Do I need RS4-style inlet pipes when upgrading my B5 S4 from K03 to K04 turbos?

A typical RS4-style K04-025/K04-026 conversion requires inlet piping compatible with the larger K04 compressor inlet. Verify the dimensions of your exact turbochargers.

Are these designed for K04-025 and K04-026 turbochargers?

Yes. These are the specified RS4-style turbocharger references for this inlet pipe kit.

Will these work on an Audi A6 2.7T?

They are intended for compatible C5 A6 2.7T K04 upgrade configurations. Confirm engine layout, turbo inlet diameter and connecting intake components.

Can I install them on an Audi Allroad 2.7T?

The C5 Allroad 2.7T is a relevant application for compatible K04 turbo conversions. Exact fitment must be checked before installation.

Are these original Audi RS4 OEM inlet pipes?

No. This is an aftermarket XS-POWER RS4-style inlet pipe kit.

Are the pipes made from stainless steel?

No. The supplied product information specifies aluminum inlet piping with a black heat-coated finish.

How many inlet pipes come in the kit?

The kit contains four aluminum pipe sections and two silicone hose connectors, plus associated installation accessories.

Will these fit stock K03 turbochargers?

They are designed around RS4-style K04 inlet connections, not the standard K03 arrangement. Do not assume direct compatibility with stock K03 turbos.

Will they fit oversized K04 hybrid or aftermarket turbochargers?

Not necessarily. Some hybrid turbochargers use different compressor inlet diameters. Compare the dimensions before ordering.

Do these inlet pipes increase horsepower?

The purpose of this kit is to provide compatible inlet piping for the specified turbo arrangement. Actual engine performance depends on the complete turbo system, tuning and supporting modifications. No horsepower increase is guaranteed.

Is this a complete Stage 3 turbo conversion kit?

No. This listing is for the inlet pipe kit and specified accessories. Turbochargers and other conversion components are sold separately.

RS4 K04 INLET PIPES FOR AUDI S4, A6 AND ALLROAD 2.7T BUILDS

Owners searching for Audi B5 S4 K04 inlet pipes, RS4 K04-025 K04-026 turbo inlet pipes, 2.7T Stage 3 turbo inlet upgrade kits, Audi A6 2.7T RS4 inlet pipes or Allroad 2.7T K04 intake piping can compare this XS-POWER kit against their turbocharger configuration and installation requirements.

The four-piece black-coated aluminum design, included silicone connectors and RS4-style K04 application make this kit relevant to classic Audi twin-turbo maintenance, K03-to-K04 conversions and compatible B5/C5 performance projects.