Power commander PC3 for k7/k8 GSXR1000.Good working condition, was running fine on my k8. No, it won't fit your k5/k6. Don't know if it will work on a 600 or 750. Feel free to call/sms/whatsapp me on 0792734308 alternatively email me at email@example.com. Delivery can be arranged in west rand area.