This bike has the full M4 exhaust with a Power commander.The rest of the mods can be see in the pics.There are a 2 rock chips on the rear tail on the top and there is a chip on the lower right side above the middle A in yamaha right where the plastic bends around the motor. It is always kept inside. Overall this bike is outstanding. There are no mechanical issues with it. 10k mileage. Fell free to ask more questions, sms me at:(615)nine87'07_76