like it says, one of my bolts was on stupidly tight/rusted and I just went ahead and drilled it out before I snapped it off completely. I had the front of my car raised, so I was starting with I guess what would be the front of the cat? (3 bolts are here, the side that's closest to the front of the car). Drilled through it completely and got it off, but what kind do I need to replace it with. I found this link in a previous post and wasn't sure if it was the same thing I need?

http://mazdatrix.com/8exhaust.htm

scroll down to exhaust system hardware

I need the bolt/nut, whichever one it may be..is it the rear combo or the front combo. No clue which way they consider the cat to be going.

Thanks

 

the three bolt side is connected to header side so it will be the main cat front.

 

next time spray wd 40 first waite for a few min before removing the nuts.

 

ok so I'll go ahead and order the main cat nut/bolt