90 Quattro 20V (Canada) L5-2309cc 2.3L DOHC (7A) (1989)
Muffler: All Technical Service Bulletins
Exhaust System - Noise Underneath the Vehicle
GROUP: 26
NUMBER: 91-03
DATE: June 30, 1991
SUBJECT:
Exhaust System - Noise Underneath The Vehicle
MODEL(S):
80/90/Quattro, Coupe M.Y. 1990-1991
CONDITION:
To reduce storage related corrosion the quality level of material in the middle muffler has been improved.
PRODUCTION:
Improved quality grade of material for middle exhaust muffler.
As of:
December 1990
VIN:
8A_MA164750
8B_KA007161
SERVICE:
When replacing middle exhaust muffler use improved parts. P/N unchanged (Improved parts since 09/90).