Chevrolet Corvette 2020–2025 — technical service bulletin
Bulletin PIC6581 · NHTSA communication 11011456 · issued Oct 22, 2024
Technical service bulletin
communication type
Unknown OR Other
component
2020–2025
model years
6
vehicle entries
Official summary
This Preliminary Information communicates diagnostic information to dealership techs in assisting them with determining OEM mufflers from aftermarket ones.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.