Thanks ez but I did have a wrench on the rear. It is possible I did not have the exact hex (smaller sae) on it in the begging but by the time I went to home depot to purchase the proper size and handle the damage was done.you could always try a bigger hex head and tap it in and make its own marks/grooves and then remove. now i have a quick question you did notice the nut behind the bolt right? i have removed exhaust a couple of times and the only way it wouldn't come off is if i turned the wrong way and didn't have a wrench on the nut that is on the back side. just a side note
Yikes!! :scared There are better solutions than that. I have all kinds of damaged bolt removers.Thanks for everyone's suggestion, drilling the bolt toke a lot of time and money because I ended up finding out I needed the black oxide bits ($30) to penetrate. The bolt removal kits at home depot did not work and I tried 2 different manufacturers. I ended up drilling ou the metal attached to the the pipe and deal with not having 1 center bolt for the Yoshi and probably won't be able to get rid of the stocks. FYI, Yoshi with silencer removed sound great.