Looks like a need a new cat now. Anyone have any recommendations on an aftermarket cat that will get rid of my P0420 code and get me past inspection? My buddy says this is going to be about $500+ fix from Mazda, hoping I can beat this.
Thanks,
-Tim
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Looks like a need a new cat now. Anyone have any recommendations on an aftermarket cat that will get rid of my P0420 code and get me past inspection? My buddy says this is going to be about $500+ fix from Mazda, hoping I can beat this.
Thanks,
-Tim
What year car?
On my 1.6L cars I just went with an aftermarket high flow cat. Ended up with a little louder exhaust, it was less than $200 installed, passed inspection with flying colors, and butt dyno approved.
RJ
oh yea, you can beat that. i think i got my 2.5 inch high flow for $180 at lorentz muffler.
Check Ebay for Magnaflow cats. They're bolt in and under $100. I'm not really sure if they are a performance upgrade or not.
I read that starting next year you need an OEM cat for stock class autocross. I don't think anyone would protest it locally, but it is something to keep in mind if you want to autocross the car.
Where did you read that?? ::Shocked:Quote:
Originally Posted by Titus
+1Quote:
Originally Posted by Miatamoto
I got mine from www.autopartswarehouse.com for around $80 shipped, bolted right in. A little louder than stock, who knows if it actually flows better - but it doesn't rattle and it's not pulgged up.
YMMV and all that...
I thought the rule has always been OEM up to the cat to stay stock.Quote:
Originally Posted by POS Racing
Quote:
Originally Posted by POS Racing
Per Mr Hollis:Quote:
Originally Posted by sammm
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They make both OE replacement (legal for this year) and hiflow cats (not legal ever in Stock).
For next year, Stock will require OE cats only so you'll need to find one of those. Convertergeek.com sells refurbished (i.e. cleaned but not rebuilt) re-certified cats for a fraction of the new price.
Interesting, I knew you could do OEM or OEM equivalent replacements :cat:'s, hence my question. ;)Quote:
Originally Posted by Titus
I've got a standard '99, manual transmission. Did you go with a Magnaflow or an Eastern Catalytic? Nearly all of the Magnaflows appear to be universal fit, which as I understand it, may mean it has to be welded in. I'd rather have a bolt on if I can get it, but at the same time, it sounds like most people use Magnaflow.Quote:
Originally Posted by CraiginTX
Thanks,
-Tim
How many miles are on your car currently?
I understand that that emissions system is warranted up to 80K miles, but that would be an OEM cat.
I also got a Magnaflow :cat: from them. Mine was bolt in. :confused:Quote:
Originally Posted by scorn001
Quote:
Originally Posted by joe.MIATA
About 156,000. Think they'll still honor it? :rolleyes:
-Tim
Shoot ya just missed it by a mere 76,000 miles. ;)Quote:
Originally Posted by scorn001
Mine was a Magnaflow bolt-in. Fit was perfect, and I reused the old gaskets with no problem. I later replaced one of the gaskets when I installed my header.Quote:
Originally Posted by scorn001
How old is your 02 sensor and plug wires?.............my 99 set the same code pretty regular, a new pre cat 02 sensor and plug wires fixed it. My car has a little over 80k on it and the sensor and wires were still OE.
good luck
Quote:
Originally Posted by VFR750
Plug wires are about 45,000 miles old. O2 sensor I have no idea, I assume it is OE. I'll look into that.
I'm hearing some rattling from the back lately that started occurring before the P0420 error, so I assume that was the cat flaking out then.
-Tim
I went to a local muffler shop. The same "High Flow" cat that FM used they installed for me "Parts + Labor = $105"
Just be careful what :cat: you buy at the local muffler shop. The one I had put on about a year ago is making an odd noise. I thought I had a leak so I had AAA muffler take a look and the guy said there was no leak, just a low quality cat making noise. Possibly the wrong flow or size he said.:rolleyes:Quote:
Originally Posted by MiataMike
If the cat is faulty, more than likely so is your o2 sensor, change them both if the cat's internals are falling apart.
Not sure, the muffler shop said the cat was fine just crappy. Makes an exhaust leak/rattle sound at certian rpms. I hope its not going out yet. I was planning on getting a good one when I buy a header in a few months. I can't afford that right now since I'm buying POS's wheels tomorrow and about to buy a new top! I'm all out of ::2Dollar: now!Quote:
Originally Posted by Sharpie
I didn't mean yours Chris
Looking at the Magnaflow website, it looks like the only direct fit they have for the '99 has an A/T in the description field. I assume this means automatic transmission? So does this mean don't have a direct for for the manual tranny Miata? Surely I'm looking at this wrong?
http://www.car-sound.com/02product/s...=484&cat=Miata
-Tim
Before I'd take the word of someone on an internet forum I'd contact the manufacturer of the part in question, but that's just me.
http://www.car-sound.com/08aboutus/08contactus.asp
All cats fit when they are welded. :-)
BTW. Mazda shows 2 different part numbers for the Fed setup see page 46.
BP4W-2055-XH MT Fed.
BP4X-2055-XH AT Fed.
http://www.miata.net/garage/90-99Par...%20CHASSIS.pdf
This one might work...
http://img249.imageshack.us/img249/6...mufflerzn5.jpg
if you're not worried about class mods, then just pull the o2 sensor. Jason at enthuza has nice "bullet" cats that he's tested on a dyno with a 2hp drop over catless.
::Clown::Quote:
Originally Posted by Sharpie
Well scorn001 did have any luck finding a :cat: ?
Quote:
Originally Posted by POS Racing
I ended up buying a cat from Eastern Catalytic. I'd have rather had a Magnaflow, but I called them and they said over the phone that they didn't have a cat for a '99 Miata with a manual tranny (bolt-on or universal). Seems strange, but that's what he said. I had a friend weld on the new cat last night and I cleared code this morning before work, 50 miles and the CEL hasn't come on yet, so hopefully this got it.
Thanks for everyone's help.
-Tim