The 2.7T platform is far from dead, with tuners continually gaining more power with them.  Stock fitment components are becoming less and less viable as power levels skyrocket 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" into the turbo and trim the transition of the 034 big bore hose.

The inlet of the hose is sized for the RS4 y-pipe, so it's a perfect compliment to our high-flow carbon y-pipe, or it 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.