I have a pacesetter header coming and im designing my own down pipe with a cat. I have a bunch of madrel bent stainless steal pipe in my garage. And what i was wondering is what is a good high flow cat.

 

Bump any one?

 

I would just go with magnaflow... High flow is a high flow in my opinion.

 

cobalt addiction has a high flow cat

 

The best catalytic converter is no catalytic converter

 

Ok thanks you guys I guess Im going with magnaflow.

 

Random Technology

It doesn't get any better.

BTW, you do know it's illegal to remove/replace the factory catalytic converter unless it's bad or damaged, right?

 

Oh, really? How much power do you gain over a good aftermarket cat? 5 HP? 10? 15?

Import Tuner magazine tested various aftermarket catalytic converters using a Civic with aftermarket intake, header and cat back exhaust.

The best catalytic converter, per their test, is the Magnaflow ceramic-core catalytic converter. It made 14 HP more than stock.

They also tested a straight pipe. And, yes, it made more HP than the Magnaflow. It made exactly ONE horsepower more. ONE!

See the article at:

http://www.importtuner.com/features/...erter_removal/

Read it for yourself. If you truely believe the polution you generate with a straight pipe is worth ONE horsepower, and that you can actually FEEL one horsepower, then by all means cut it out. Just don't breathe the air when you have the engine running.

 

Who cares How would some body know if my stock converter went bad or not unless I told them. I know a few mustang owners that have had a cat go bad after 15,000 miles. And BTW I will also have N2O in my car this spring so if they get me for some thing it wont be for a cat

 

Forgive me for trying to help.

Some of you people on this board are real pieces of work.

Sometimes I wonder why I waste my time on this message board.

 

well the randoms look nice and most likely flow better then magnaflow but not $200 worth of more flow so Im going magnaflow.

 

Oh man! How in the world did I get a hole in my cat? I must have bottomed out or something!

 

Goodie twoshoes... lol If it is illegal then why would a shop install a "test pipe" on my 1993 Ford Probe?

I would just run a straight pipe all the way back from the down pipe....


later

 

I've actually been running straight pipe for about a month now, at a cost of $0

 

We have some also available. If any interest you let me know I will see if we can get you a deal on it.

 

"Jeeze, would you take a look at that?! My engine must've blown all the **** clear out of my catalytic converter! Jeeze, thats too bad..."

 

i'm running a magnafllow cat convertor

dont really notice a difference between stock and not but exhaust never made a big difference for me in power in the first place.

 

Sorry, HackAbuse, I didn't notice it was you I was attacking - I have great respect for your posts.

However, I guess I feel strongly about maintaining emission controls and still gaining performance. Living in Denver, where the air is brown all summer is different than living where it has less local effect.

I was also quite surprised when I read that article in the magazine, so I went looking for it on-line to share. I plan to use the best high-flow cat from the test, partly because we have California-style emissions testing here, and partly because I believe in it. Odd, I know, for an "old fart," but I guess I'm tired of breathing fumes - except nitro at the drags, of course!