HELP!! One side Stock Cats and One side aftermarket Cats. Help!

Bao Tran

I'm defeated... I spent 70 dollars on extension at Harbor Freight today... going to return some tomorrow lol... Only need a set, I can't imagine when will I ever need these again if ever... I'ma call up some shop tomorrow and see if they can do anything about it. If not, i'll just bring it to ProjectX in Chicago. I'm pretty sure they have OWNED this bolt many times Stripped or Not...

Anyways, here's the story...
I got some PB blaster and soaked it, sprayed it every 20 minutes for the first 4 times. sprayed another time an hour later... went to Harbor Freight and got myself some Chipotle. 4 hours later came back home. worked on it. and It was impossible to get the bolts off by hand. I was under the car holding down the bolt and extension so it wouldn't budge off the bolt. We put a lot of force to it. but then the bolt finally gave up and stripped more and more on the bottom every time we it budges off. Now.. it is time to use the impact gun.. worked way better than using a rachet and a breaker all. The socket stayed seated in there quite well. My electric Dewalt impact gun is pretty strong... the bolt didn't even bother to move... last attempt, put the rachet and breaker bar back... that's when we knew it's time to clean up...

At a professional shop like ProjectX, there's no doubt that they could get it right?
Although it's stripped, I still would like to know what would the professional use to get it out?

Btw, thanks for the help guys! Im glad I finally invested in some 1/2" Impact Sockets, it feels much better than regular socket.