Daemos

So I already have a catless midpipe, I figured I might as well just buy a highflow cat and get it welded in instead of buying another pipe.

All I know I need to look for a cat with a metallic core, but which one flows really really well, and how does one know the flow (I was reading up on 300/200/100 cells per inch etc, not even sure what that means)

Any help or suggestions would be appreciated

JB_Rotary

I was thinking the same thing. Why but a full high flow cat when you can just buy a mid pipe and have a high flow cat welded in at a much lower cost. all you'd have to deal with are the O2 bung locations.

Magnaflow if you want to go cheap. A metallic cat wil last longer but cost a $#!7 ton more. You wcould also see what a muffler shop has. SOmetimes they can get high quality stuff if you ask for it.

Daemos

Well I already have an O2 bung on my midpipe...so I really just need a cat.

I'm trying to find out brands of metallic cats, I don't want magnaflow if I need to keep replacing it =/

TeamRX8

iTrader: (25)

Are you willing to spend $700 for the best?

ShAdOwFoX

why don't u try mazsport, i think they have a cat, not sure if its high flow

Keef

Or 50 bucks for a new magnaflow one I have sitting in my garage...

Daemos

Keef: magnaflows are ceramic...looking or metal. sorry :/

TeamRX8: i am always willing to save up more and spend more if i feel the product has qualities that make it worth it

WAR CRUNK

yea i want a high flow too SUPERCAT?

Daemos

I am looking at the Random Technology Metal Matrix Cats (~$200USD), as well as the Metalcat (no idea on price)

But any others would be awesome.

Like I said, if the $700 cat from europe meets all emissions, out performs the other cats (depends on my whp goals I assume) it would be worth it to get it. I have until school ends til decide (because until then I have almost 0 time to do it)

TeamRX8

iTrader: (25)

What I use is a german touring car FIA racing cat that can handle 2000 degF, but with today's crappy exchange rate and the current cost of platinum it's probably more like a $1000+ now compared to when I bought mine in early 2005. So sorry, I just didn't consider the time lapse difference. I've never had any emissions issues with it, but it's not certifed as a street cat per se. IMO none of the cats being sold for the RX-8 are either, at least not per a strict interpretation of the EPA regulations.

How good a cat is dependent on it's materials. The materials needed to sustain high temperatures are expensive. The precious metals used for the gas conversion process; platinum, rhodium, etc. are also very expensive. The heavier the precious metal coating, the better the life and conversion quality, but also the more expensive it is to make. You have to pay to play if you want a quality cat converter.

I ran mine at 14.5 - 14.9 AFR under WOT for quite a while without issue. That said, with improper tuning you can burn up any cat, but a cheap cat will simply burn up sooner and easier. Even the OE cat won't take 1600 degF for very long under WOT conditions.

Daemos

yikes $1000 on a cat =/ that would be painful =/

TeamRX8

iTrader: (25)

after you go through several lower priced cats you may develop a different viewpoint on the value of it

I had my doubts initially, but would do it again

savedsol

Magnaflow does make metallic cats. No info on cell count though. You may want to call and then post info here.
http://www.car-sound.com/02product/u...al/599spun.asp

slavearm

Melted both. Enjoy. The random lasted about 5 months, the Metal cat about 3 weeks.

Team: Give up the manufacturer of your cat. I would like to talk with them.

nycgps

iTrader: (1)

ask mazda how much they're selling their stock cat for.

savedsol

Stop being a tool and google "FIA catalytic converter" He's given you ALL the info you need.

slavearm

Am I really a tool? HJS and about 12 other manufacturers are listed on that search.


Not to mention, I have no idea which model he ordered, since they don't make just one part.

alnielsen

iTrader: (4)

Well, I did my own search and came up with this: http://www.davesport.com/cgi-bin/davesport/DCAT100.html

It would be interesting to see a test of this one.

swoope

iTrader: (5)

call billy boat racing and see if they carry the cat or if they can get it.. they are listed as the usa distributer for it...

btw, team did not get it there..

beers

swoope

iTrader: (5)

good find,

wish they had the dimentions of it..

here is the magnaflow.

http://www.performance-curve.com/ind...OD&ProdID=1212

i am going to have to add one soon...

i guess i am going to be the beta tester for one..

beers

alnielsen

iTrader: (4)

The ad does say "Specify exhaust tubing size."

I think the Magnaflow is a 300 cpi cat. It wouldn't be as free flowing as the 100 cpi. Team's cat was a 100 cpi.

TeamRX8

iTrader: (25)

$138 = junk for a rotary application

alnielsen

iTrader: (4)

I emailed and recieved a reply about this cat.

TeamRX8

iTrader: (25)

not better for emissions though

there is no US distributor for what you need ...

swoope

iTrader: (5)

well i am falling on the grernade on this one.. the davenport one will be delivered mar 3. hope to have it on by the end of that week..

it is supposedl to be a bit different that the one in the photo.. as they have changed something..

will let you know how it goes..


beers