Buy 2008 Audi A5 Intercooler Pipe (Front, Rear, Upper). 4.0 LITER, COOLERS AND COMPONENTS. RS Q8; Left Left, COOLERS, Liter - OEM Audi Part # 4M0145737AD (4M0-145-737-AD)

Hose. Pipe.
A Pipe that transfers compressed air to from the turbo or super charger to the intercooler.

Turbocharger Intercooler Pipe

Fits RSQ8, SQ7, SQ8

4.0 LITER, COOLERS AND COMPONENTS. RS Q8; Left; Lower. SQ7; Lower; Left. SQ8; Left; Lower.
Turbocharger Intercooler Tube - Repair or Replace
If your 2008 Audi A5 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.