I'm trying to remove the bolts on the rear undercarriage to install my diffuser and they are IMPOSSIBLE to get off. Is this normal? Also one of the bolts is starting to strip. Does it require lots of force to get this bolt off (I'm using a breaker bar and its barely turning)? and what should I do with the bolt that's starting to strip?

 

are the bolts rusty or corroded? Try some PB Blaster on them or liquid Wrench see if it loosens them up.

 

+2...Put it on and let it sit for 30 minutes if you can and then try it again.

 

Yeah I tried that, I'll see what happens I don't need the diffuser and don't want to totally strip the bolt. I may just take it to a shop. Sad part is that was supposed to be the easiest thing to install in my car, turns out the intake manifold and turbo removal are.

 

If you can't get it just use an extractor socket. I have yet to find anything I cant rip off with those badboys..