Package includes： Engine Duct with Air Mass Sensor Tips: Installation Manual Is NOT Included. Professional Installation Is Highly Recommended. Please make sure it will fit your machine before purchasing it. Please check pictures for more details. It is recommended to clean the carbon deposits inside the three-way catalytic converter before installation to prevent fault codes from appearing after sensor installation OE Number： 642 090 34 97, 6420903497, A 642 090 34 97, A6420903497 642 090 60 97, 6420906097, A 642 090 60 97, A6420906097 642 090 63 97, 6420906397, A 642 090 63 97, A6420906397 .
