I ordered some eastern cats to replace my original cats. Once I got into it a little I ran into a couple hiccups and am wondering if anyone can help out.

First, my original cats have threads in the flange that meets up with the y-pipe. The replacements have no threads. Can I just get a longer bolt and put a nut and washer on the other side?

Second, the two rear bolts on the back cat have a heat shield over them. Any tips on how to get to the bolts?

Thanks in advance.

 

no you cant. it wont work. somehow the cat will know and disintegrate into nothingness. really, did you need me to tell you this.

 

Please stop attempting to work on your car, and pay a professional.

 

I cant understand someone who changes his cats, but cant figure out using a bolt with a nut to fasten it.