Hello, every part has a potentially different outcome. Some may be compatible, some may not.
You'll need to consult a Chevrolet dealership and ask them - they have the parts films that check for compatibility, what parts were used for what years.
RepairPal Certified shops can diagnose and repair your 2011 Chevrolet Impala. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.