Product Presentation

DE CAT 3” TO 2.5” DOWNPIPES FOR AUDI 2.7L S4/RS4 (B5) AND A6/ALLROAD (C5)

Performance oriented aftermarket downpipes increase horsepower on a turbocharged vehicle by enabling higher flow of exhaust air than the OEM pipes. Vacating exhaust air more efficiently through optimized and smooth bore flow paths ensures that the exhaust pressure is constantly lower than the intake pressure, allowing the engine to breathe in more air, burn more fuel, and thus generate more power.

Engineered with improved custom design of flow path and specifically for the 2.7L V6 Bi-Turbo Audi S4/RS4 (B5) and A6/Allroad (C5), this high flow downpipes product features a mandrel bent 3" to 2.5" piping constructed from high quality T304 stainless steel.

TIG welded at all joints, it also combines a cracking and corrosion resistant surface and an obstacle free internal wall. Catalytic converters are removed from upper sections to further eliminate restrictions on flow. The hybrid inlet flange will directly bolt on to K03, K04 and RS6 turbos.

As a result of professional design and top-notch craftsmanship, this product provides an immediate turbo spool-up and an increase up to 20hp at high RPM.

IMPORTANT: This product does NOT fit Tiptronic and A6/Allroad with 6-speed manual transmission.

FEATURES

  • Up to 20hp added at high RPM
  • Immediate turbo spool-up
  • Mandrel bent piping made from high quality T304 stainless steel
  • 3" inlet tapering to 2.5"
  • Catalytic converters removed from upper sections for increased flow
  • TIG welding at all joints for greater durability and appearance
  • CNC-machined stainless steel V-band clamps and flanges for pressure tight connection and easy install
  • Heavy duty stainless steel flex sections
  • Inlet flange compatible with K03/K04/RS6 turbo
  • Test pipe outlets necked down to fit OEM sleeve clamps

VEHICLE COMPATIBILITY

  • 97-01 Audi S4/RS4 (B5 | Typ 8D) 2.7L V6 Bi-Turbo
  • 99-01 Audi A6/Allroad (C5 | Typ 4B) 2.7L V6 Bi-Turbo

IN THE PACK

  • (2x) De Cat 3” to 2.5” Upper Section
  • (2x) De Cat Test Pipe
  • (2x) V-band Clamp
  • (2x) Asbestos Gasket

IMPORTANT: No instructions included. Professional installation highly recommended.

  • Orders will be processed within 1-2 business days.
  • We use DHL Worldwide Express, FedEx International Economy and UPS Worldwide Expedited as standard shipping services.
  • Shipping to the United States (excluding Alaska, Hawaii and Puerto Rico) is free if not otherwise specified.
  • Shipping fee to other destinations varies.
  • Please contact us if shipping information is not specified for your location.
  • Extra fees apply for using FedEx International Priority.
  • We are not responsible for any extra fees that may arise from custom handling or import duty.
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  • We only accept payment via PayPal.
  • Please confirm the recipient's name and address before placing an order.
  • Extra fee may apply for changing address after an order is shipped.
  • Return for refund is available up to 30 days after delivery.
  • Item must be returned in factory new packaged condition.
  • The customer is responsible for all shipping costs and any additional fees. (e.g. custom clearance)
  • Return without notice will not be accepted.
  • If the item is damaged or incorrect upon receipt, please notify us immediately.
  • We offer a 12-month warranty against failure due to factory defects.
  • We will only replace warrantied items. No refund will be given.
  • A warranty inspection requires returning the item to the manufacturer.
  • Replacement will be issued if the item is found defective.
  • Our warranty does not cover damages due to transportation, installation, modification or any forms of misuse of our products.
  • The warranty is not transferrable and thus valid to the originial buyer only.

By placing an order, we assume that the customer will use the product(s) in accordance with any applicable local regulations and restrictions on road safety and exhaust emission. We shall not be liable for any legal consequences arising from improper use of our product(s).