So yesterday I spent my day off working on the p5 and one of the things i was gonna do was change my brakes and rotors but for some reason the top 17mm bolt holding the calliper to the strut wouldn't come off . I tried wd40, using a makeshift breaker bar, my impact drill from work and no dice. I eventually gave up after 2 hrs fighting and went to work . So my question is is there any other way to get the bolt off? I don't wana have to go to my mechanic just to change my rotors and pads when I know how to change them, it's just that bolt has me on my knees confused as ****.