The finest quality reinforced silicone MAF hose for the S4/A6/Allroad 2.7T. Designed to go from the S4/A6/Allroad 2.7T MAF to the 2.7T Y-Pipe. Directly modeled off the OEM hose to ensure optimal fitment. Fits APB engine code only. Does not have PCV tube provision for later engines. The PCV connection can simply be capped when using this hose on later engines.
Replaces OEM Part #: 078 129 627T
Features a larger inside diameter and smoother surface for better flow, and stiffer construction to prevent collapsing. Manufactured from high-quality automotive silicone for life long reliability.
Well ngineered and crafted product. Mates perfectly to the 034 MAF 85MM MAF, which when using the O34 adapter also mates perfectly to my stock A6 2.7T air box. When using these three products together it is a great performance improvement over stock.....and also a nice, serious looking performance addition visually under the hood. My only very slight complaint is mine seems to be just a tab bit short for my particular setup....maybe 1/4 to 1/2" is all. Still fits and works fine....just would be a better (ie perfect) fit if it was just barely longer. At least on my car. Still 4 of 5 stars.