I installed a downpipe on a friends 2000 A4 quattro 1.8T manual. Came with new gasket for the turbe/downpipe flange.

Since then, friend reports some exhaust leak noise. Since I did not install a new gasket at the end of the downpipe, I suspect its that one leaking (car not on hand).

I want to order the gasket to replace it next week when he brings the car, but have a hard time identifying the 'right' one.

Does anyone have a part number or the 'proper' description.

At parts geek, I found for example "inlet" and "outlet' below:


Bosal Exhaust Gasket
Your Price: $3.35
Part Number: 7450-05018545
Notes: Exhaust Pipe Flange Gasket -- Outlet


Bosal Exhaust Gasket
Your Price: $8.35
Part Number: 7450-05218347
Notes: Exhaust Pipe Flange Gasket -- Inlet