Output curve tolerance with 2%. Fast response less than 15 ms. Sensor element made up of platinum same to stock one.Direct replacement and meets OEM specifications. The return package should be as same as the one you received. We provide OE quality auto parts with a low price. Customer service from Monday to Friday. Response will be within 24 hours, not including weekend or holidays. The item "New Mass Air Flow Sensor Meter MAF For Buick Chevrolet Impala GM 3.8L AFH50M-05" is in sale since Thursday, May 25, 2017. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Air Intake & Fuel Delivery\Sensors". The seller is "smotorparts" and is located in Los Angeles, California. This item can be shipped worldwide.