Silicone Y-Pipe Hose Pair - Big Bore

Allows a full 2.5" diameter transition to the lower RS4 inlet pipes
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Please Note: Only available for purchase and shipment within the United States 

The 2.7T platform is far from dead, tuners continually making more and more power with them.  Stock fitment components are becoming less and less viable as power levels sky rocket past the typical 500HP Stage 3 power level.  Inlet flow to the turbos is an issue with the stock y-pipe and inlets being approx 2" for 2 feet plus.

Using big bore 034Motorsport silicone hoses allows a full 2.5" diameter transitioning to the lower RS4 inlet pipe, ensuring ample flow for high power levels.  Those building custom inlets can run a 2.5" all the way into the turbo and trim the transition off the 034 big bore hose.

The inlet of the hose is sized for the RS4 y-pipe so its a perfect compliment to our high flow carbon y-pipe, or can be spaced down to use with a stock S4 y-pipe with the included 2.25" silicone couplers.  Provisions for factory location bypass valves.

High temp silicone hose with wire reinforcement to prevent collapse under any conditions.


  • 2000 - 2002 Audi S4/RS4 (B5)
    • 2.7T
  • 1998 - 2004 Audi A6 (C5)
    • 2.7T
  • 2001 - 2003 Audi Allroad (C5)
    • 2.7T

Price per pair. Available in black only.  Includes hose clamps!

Cross Reference
  • 0341083001

This Part Fits the Following Vehicles

Make Model Submodel Engine
Audi B5 S4 All 2.7T
Audi C5 A6 Quattro 2.7T
Audi C5 Allroad Quattro 2.7T
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.


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Manufacturer names and/or part numbers are used only for identification purposes.

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