Buyer summary: Choose the IMP II package when you want one coordinated aftermarket old-to-new conversion and can use a specialist body shop. Choose OEM facelift parts when factory part traceability and individual replacement availability matter more, while accepting that a complete OEM conversion may require a long and expensive list of panels, brackets, lamps, modules and coding.
IMP II kit vs OEM facelift parts
| Decision factor | IMP II conversion kit | OEM facelift parts |
|---|---|---|
| Package approach | Coordinated aftermarket exterior system | Individual factory components |
| Stated components | Bumpers, hood, fenders, skirts and spoiler | Depends on complete factory parts catalogue and donor specification |
| Material | Product describes high-performance semi-carbon aero parts | Factory-specified materials by individual part |
| Fitment proof | Requires seller’s VIN-based written confirmation | Requires exact OEM part-number matching and conversion planning |
| Best for | Complete aftermarket styling project | Factory-parts-led build with higher parts-management effort |
When the IMP II kit makes sense
The Mercedes AMG GT IMP II kit can simplify sourcing by grouping major exterior components. It may be preferable when the goal is a coordinated new-style appearance, but the buyer must verify the exact donor, material, parts list, replacement policy and installer capability. Review the full IMP II compatibility guide.
When OEM facelift parts make sense
OEM parts may provide clearer factory part numbers and future replacement sourcing. However, an OEM-style conversion can require more than visible panels: brackets, supports, liners, undertrays, lights, modules, wiring, seals, sensors, coding and calibration can substantially increase the completed cost.
How to compare quotes
- Require VIN, production month, body style and trim on every written quote.
- Compare an itemized parts list rather than only the kit price.
- Identify paintable, carbon and factory-finished components.
- Include freight, customs, paint, fitting, wiring, coding, calibration and corrective work.
- Confirm warranty terms, replacement-panel availability and damage claims process.
Installation planning
Choose a shop experienced with composite and semi-carbon parts, Mercedes diagnostics and high-performance vehicle cooling. The conversion should be fully dry-fitted before paint, with hood latch, crash-support relationship, airflow, sensors, lamps, underbody panels and wheel clearance verified.
Frequently asked questions
Is the IMP II kit better than OEM facelift parts?
Neither is universally better. IMP II can simplify a coordinated aftermarket conversion, while OEM parts favor factory part-number traceability. Compare complete installed scope, not only purchase price.
Which Mercedes AMG GT years are covered?
The IMP II product page does not list one universal year range. OEM compatibility also depends on the exact donor. Use the VIN and production month for both approaches.
Does either option require coding?
Coding or calibration may be required when either approach changes lights, cameras, radar, parking sensors, active-aero systems, modules or exhaust electronics.
What components should be included in the quote?
Include panels, grilles, brackets, liners, undertrays, trim, fasteners, lamps, modules, wiring, seals, sensor mounts, paint materials, labor and calibration.
Which option is easier to install?
A coordinated aftermarket kit may reduce parts sourcing, but neither route is simple. Both require advanced trial fitting, alignment, paint and electronic-system checks.
