GSXR 1000 K1-4 Forged Pistons Turbo? They look to me like turbo pistons to me but not 100%.Any question just ask, any measurements I can take etc. This item is in the category "Vehicle Parts & Accessories\Motorcycle & Scooter Parts & Accessories\Engines & Engine Parts\Pistons, Rings & Piston Kits". The seller is "1student_nurse" and is located in this country: GB. This item can be shipped to United Kingdom, European Union.