Originally Posted by Chuck33079

Depends on how big a pair of balls your impact has. Personally I'd go buy all the 1/2" extensions and swivels you need as well as a 3 foot breaker bar. Have someone keep the socket on the nut and go to town on it. The last demon bolt I tangled with I had all the above and I still needed to stand on a chair and put all my body weight into the breaker bar.

Make sure the o2 sensor is removed before you use that impact. That tends to kill o2 sensors.