The ProMAXX Ford Power Stroke 6.7L Fuel Injector Seat Restorer Service ProKit - Robby enables technicians to quickly remove stuck fuel injectors and easily refurbish the fuel injector seat in the 6.7L cylinder head. The Robby tool restores the seat’s seal in approximately 15 seconds, maintaining cylinder head compression and engine performance. The ProKit is designed to remove carbon deposits and restores the seat to factory new. It includes the company's PowerPull 6.7L Fuel Injector Removal Kit, which pops stuck fuel injectors quickly by not bolting/unbolting from the cylinder head. Engineered and American made.