any suggestions on high flow cats i am going to be running a megan racing header with skunk 2 cat back exhaust how many O2 senors will i have to worry about thanks steve

 

2 o2 sensors, one before the cat and one after, how about a test pipe instead, cats are over rated

 

i live in PA where the cats have to be on the car i hate PA laws

 

and they "have" to be on the car here too lol. its so easy to cheat the o2 sensor into thinking there is a cat. and what you could do to make it appear as though there is a cat is this:
take your stock cat
insert a long screwdriver into it
hit screwdriver briskly with a hammer

I personally have a custom made test pipe with a o2 cheater built in

 

cats are illegal to remove by a federal mandate. States can only vary in how they check to see that you have it. Also, there isn't much to be gained by removing it.

Read this: http://www.importtuner.com/features/...val/index.html

As far as high flow or performance cats, look at Moroso and Random Technologies. They both use metal substrates.

 

way to conform to society falkore lol. Nah i didnt really do it for gains, its just there was no way to get a cat that woudl line up right with my swap so to avoid having to cut my catback i just made a test pipe.

not to mention without a cat your exhaust really smells..........i personally love the smell, and if they made a cologn of a motor running race gas with no cat, I would buy it

 

Custom exhaust FTMFW!!!! I'm thinking 3in. pipe w/ a Moroso high flow cat, Moroso spiral flow resonator and a Hooker Aerochamber for me!

 

you would.................hooker

 

Great read thats for posting that article when they did the research made me completly understand the issue

 

Great!!! It's bookmarked on my computer.