My catalytic converter for my 1994 3.4 liter is rattling and i was wondering if anyone had suggestions about either just taking it off and hollowing it out, or buying a high flow cat. I had replaced the catalytic converter within the past 2 years, but recently i put headers on, and was thinking that it might have caused the replacement regular cat to start rattling. any suggestions would be great!

 

too bad its only a 3.4........ on the 3.8 camaro, if you alone gut the cat you can race vipers, making about 395 h/p by just gutting the cat alone!

 

hahaha, i remember that guy.

but anyway, i wouldn't just take it off unless your state isn't strict about stuff like that. i live in kentucky, so most of the officers don't mind seeing as how all the hilljacks would still do it anyway.

 

Ok, we really need to start linking the new guys to this thread when we talk about it so we don't look like uninformed jackasses
https://camaroforums.com/m_1704/tm.htm

Enjoy that buddy, there's a lot of reading in there, you'll learn lots of stuff you never knew

If you have emissions tests you should probably go with a high flow cat, especially if you have the "sniffer" test. If you don't have emissions you can just put in a test pipe and be done with it.

 

most aftermarket cat's have a protecive shield over them, sometimestheyrattle from time to time, check that before anything, you might get lucky.

 

Those two tools should take care of the problem
Mine rattles too thats why I suggest, ermm, "customization"

 

when i bought my car it had been decatted, one of te first things i did was to order and fit a new cat (got mine from rockauto) and it sounds 100x better, without the cat it has a real nasty tone to it.... there again, this was pobaly amplified by the aftermarket exhaust on it... which is next on the list..

 

hey dto325....i got a question. how did your headers turn out. i just got mine done and they were the biggest pain ever. i bought pacesetter headers, you get the same? let me know how much trouble you had

 

Just delete it -- the only reason to keep it is if you are subject to emissions testing -- then get a high-flow cat for better flow...

 

no ****ing way you can make 400hp but cutting out the cat. You are full of **** blouvlh8er.