* Wheel well clearance: 22" wheels, along with the necessary tires, will likely rub against the fenders, suspension components, or other parts of the car's body.
* Suspension modifications: You might need to adjust or replace suspension components (such as lowering springs or coilovers) to make the larger wheels fit, even if they don't rub. This is often necessary to prevent rubbing when turning or hitting bumps.
* Speedometer and odometer calibration: Larger wheels change the overall diameter of the wheel and tire combination, affecting the accuracy of your speedometer and odometer. This requires recalibration.
* Steering and handling: The handling characteristics of the car will likely be negatively affected by such large wheels and tires, potentially making it less stable and more prone to handling issues.
While some people do manage to fit larger wheels on cars through significant modifications, it's generally not recommended and can compromise safety and performance. It's best to stick to wheel sizes recommended by the manufacturer or those that have been proven to fit without major issues. Check online forums dedicated to the 2006 Impala to see what wheel sizes other owners have successfully used.