Buy 2001 Audi A4 2.8L V6 M/T FWD Base Sedan Intercooler Pipe (Lower). 6 CYLINDER, 2.7 LITER, front Front, Left, Air - OEM Audi Part # 078145719H (078-145-719-H)

Charge Air Cooler Pipe. InterCooler Pipe. Pressure hose.
A Pipe that transfers comPressed Air to from the turbo or super Charger to the InterCooler.

Turbocharger Intercooler Pipe

Fits A4, S4

6 CYLINDER, 2.7 LITER, front lower.
Turbocharger Intercooler Tube - Repair or Replace
If your 2001 Audi A4 is equipped with a turbo and you've noticed a reduction in acceleration or a hissing on acceleration accompanying your check engine light, your intercooler or its piping/tubes may need to be repaired or replaced.