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LaCrosse V8-5.3L
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Exhaust Sys. - Sound Change In 3 or 4 Cylinder Mode
Exhaust Sys. - Sound Change In 3 or 4 Cylinder Mode
This TSB number 06-06-05-001D, dated 02/24/10 has been superceded by TSB number 06-06-05-001E , dated 10/17/11