Hey guys, I'm running into some issues installing my Fast Intentions Resonated Test Pipes on my 2011 G37x Sedan. My car has always been annoying to install new parts on because something either always breaks, rounds off, or doesn't want to come off. In this case, I have three bolts that are being stubborn. The Driver's Side "Demon Bolt" is starting to round off and will not come off. I've tried breaker bars, cheater pipes, and even my impact gun (I am going through the engine bay with the intake tubing removed). I have purchased 3 different types of bolt extractors and have had no luck. The other two bolts that are giving me trouble are the 2 bottom bolts connected to the "triangle flange". These bolts are starting to become and issue and do not want to round them. Any suggestions on what I should do would be greatly appreciated.