This is for multiple matching options. Some with a bull sensor on the cat, some without. The connector was not included if your car has only one upstream sensor. Because I plugged the hole with a short bolt, the Virginia Emissions Inspector failed the vehicle for "modifications", ie plugged a hole that originally had no sensor. However, screws and a gasket were included. a printed sheet stating that it must be presented to the examiner before the examination. Also, it fits like a stock and hangs flush with issues. You will also need to buy 3 bolts and nuts for the Honda rear flange as the old ones won't come loose. Just drop the whole exhaust. Raise the car, unscrew the front pipe. Go back to the front and work on it outside of the car. 5 hours versus 1-45 minutes. Put on goggles and use the silicone on the temples.