AUDI 2.7T Allroad b5 S4 BRAIDED FLEX VERSION3 NEW STYLE de-CAT BRAIDED FLEX Downpipes

Upgrade your Audi Allroad C5 2.7T BiTurbo 6-speed exhaust system with the XS-POWER V3 True 3" to 2.5" Performance Downpipe & Test-Pipe Set.

Developed specifically for enthusiasts looking for a serious exhaust upgrade for the 2.7T-powered Allroad, this system combines large-diameter mandrel-bent tubing, T321 stainless steel construction, heavy-duty braided flex sections, V-band connections and non-resonated de-catted midpipes.

The factory downpipe system can become a major restriction as airflow and boost are increased. The XS-POWER V3 system provides a substantially larger exhaust path immediately downstream of the turbochargers, making it an excellent upgrade for tuned 2.7T Allroad builds.

Whether your Audi is running factory-style turbochargers or an upgraded 2.7T performance combination, freer-flowing downpipes can become an important part of improving the overall exhaust system.

• XS-POWER V3 performance downpipe system
• Designed for applicable Audi Allroad C5 2.7T BiTurbo 6-speed manual applications
• TRUE 3" downpipe tubing transitioning to 2.5"
• Premium T321 stainless steel construction
• Mandrel-bent exhaust tubing for smooth exhaust flow
• Precision TIG-welded construction
• Heavy-duty braided flex sections
• V-band flange connections for convenient assembly and service
• Non-resonated midsections / test pipes included
• De-catted performance configuration
• Midpipes neck down for connection to factory-style sleeve clamps
• Designed to work with the factory-style rear exhaust connection
• Excellent upgrade for tuned and modified Audi 2.7T engines
• Ideal for performance K03 / K04 and upgraded turbo applications where compatible
• More aggressive 2.7T exhaust sound

The downpipes are positioned directly after the turbochargers, making them an important part of the exhaust path on the Audi 2.7T twin-turbo engine.

As boost and exhaust mass flow increase, restrictive factory exhaust components can limit the potential of a modified turbocharged engine. Increasing downpipe diameter and reducing unnecessary restriction can help the turbochargers discharge exhaust gases more efficiently.

The XS-POWER V3 system uses true 3-inch tubing at the downpipe section before transitioning to a 2.5-inch connection, providing substantially more exhaust-flow capacity for performance-oriented 2.7T combinations.

These XS-POWER V3 downpipes are manufactured from 321 stainless steel, an excellent material for high-temperature turbocharger exhaust applications.

Combined with quality TIG welding, mandrel bends and heavy-duty flex sections, the system is designed for the demanding heat cycles experienced in a performance twin-turbo exhaust system.

• Increased exhaust-flow capacity compared with restrictive factory components
• Reduced post-turbine exhaust restriction
• Supports higher-flow tuned 2.7T combinations
• Excellent supporting modification for ECU-tuned vehicles
• Supports K03, K04 and other compatible turbo upgrade combinations
• Large 3" primary downpipe section
• Non-resonated configuration provides a more aggressive exhaust note
• Helps unlock additional performance from properly tuned 2.7T setups

Enthusiasts have reported substantial gains from upgraded downpipes when combined with ECU tuning and appropriate supporting modifications, with some combinations reporting gains in the 40+ wheel-horsepower range. Actual power gains vary considerably depending on turbochargers, boost, ECU calibration, fuel, intake, intercoolers, exhaust system and overall vehicle configuration.

Audi Allroad C5 2.7T Twin Turbo – 6-Speed Manual Transmission

Designed for applicable 2.7T-equipped Audi Allroad 6-speed manual applications.

IMPORTANT: Please verify vehicle year, engine, transmission and existing exhaust configuration before ordering. This listing is specifically for the applicable 6-speed manual Allroad configuration and should not be assumed to fit automatic/Tiptronic applications.

• Left-Side XS-POWER 3" → 2.5" Downpipe
• Right-Side XS-POWER 3" → 2.5" Downpipe
• 2 × Non-Resonated De-Catted Midpipes / Test Pipes
• V-band connections / applicable hardware as pictured

Removing restrictive and sound-suppressing components from the front exhaust section creates a significantly more aggressive exhaust note. The non-resonated test-pipe configuration allows more of the distinctive Audi 2.7T BiTurbo exhaust and turbocharger sound to be heard.

Professional installation is strongly recommended. Installation of downpipes on the Audi 2.7T platform can require significant access to the turbocharger and exhaust areas.

Always inspect turbocharger hardware, exhaust clamps, oxygen sensors, mounting points and surrounding components during installation.

This system includes de-catted test-pipe midsections and may not comply with emissions regulations for public-road use in your jurisdiction. Buyer is responsible for determining applicable federal, state, provincial and local requirements before installation or use.

Are these true 3-inch Audi Allroad downpipes?
Yes. The XS-POWER V3 system uses true 3" downpipe sections that transition to 2.5" toward the rear connection.

Are catalytic converters included?
No. This version includes non-resonated de-catted midpipes / test pipes.

Does this fit a 6-speed Audi Allroad?
This version is designed for applicable Audi Allroad C5 2.7T 6-speed manual transmission applications.

Does it fit an automatic / Tiptronic Allroad?
Do not assume compatibility. This listing is specifically for the 6-speed manual configuration.

Can these be used with an ECU tune?
Yes. High-flow downpipes are commonly used as a supporting modification on tuned 2.7T vehicles. ECU calibration and supporting modifications should match the vehicle's hardware configuration.

Are these only for stock turbos?
They can be used in a variety of stock-location turbo configurations where the turbo outlet and vehicle fitment remain compatible. Always verify compatibility when using aftermarket turbochargers.