I have a 1997 C36 AMG with 106,000KM.

Just wondering when do I know I need to change the Cat on my car. I have an exhaust noise when cold and the dealership said I needed a new cat.

New cat at 106,000KM?

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1997 Silver AMG C36
OEM Advantegarde Grille
OEM Clear Corners
W210 Blinking mirrors
Eibach/Bilstein Combo
Zender Rear Lip Spoiler