OK, so I have the new cat ready to bolt in place. Here is my question. What size bolts do I need for the 2 bolts that are located near the resonator? I would like to buy 2 new nuts and bolts to have on hand BEFORE I get knee deep in the sh1t pile.

Also what length do I need to have them.

 

according to Autozone site,their part # 03105, M10-1.25 x 40 mm. studs and nuts

 

Perfect, where did you find that information.

 

Autozone.com searched flange bolts HHR, I would just double check, if I remember these are studs and not bolts.

 

Also, When I got the new Cat, they put the shipping labels and plastic pouches directly on the cat. Is there a good, easy way to get this off, or should I just let it BURN off?

What would you do.

Thanks for the bolt info. I'd rather start the project knowing that I have replacement bolts, JIC I break one, which will most likely happen. Unless the last mechanic to change it used anti-seize.

 

I would peel off as much as I could of those labels, no sense replacing the cat just to bar-b-que the HHR. the new cat does it have threaded holes or round holes at the rear flange??

 

like oval rounded holes. I was thinking of taking a little black and decker mouser sander and sanding them off, just try to not take off any material.

 

dawn dish wash detergent works ok for the glue residue. or others like goo b gone

 

yeah I could try that too. I want to get most of it off, but not really gonna be anal about it.