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gutting the cat tonite
Okay so I just bought my 04 rx8 the cel is on. Come to find out the coil packs r bad. So I replaced em and the plugs and wires. Still the cel is on. So tonite im gutting the cat because the mechanics r telling me its clogged. One question. Though. What the hell is the seafoam treatment? And help would be appreciated.
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non fouler mod?
Title pretty much says it all
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Im debating the worth of my stock cat. Last time I took it off the smaller 3" portion of the cat was smashed to bits, the bigger chunk after the sensor is still in tact. I was able to pass smog with the small portion smashed to bits...but since then I emptied out that junk and all that is left is the honeycomb after the o2 sensor. Would I still be able to pass smog here in CA with just that portion of the cat? I have the accessport so im not throwing a cell.
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Any tips on removing the Cat bolts on the front 3 hole flange? I snapped the bottom bolt and i was loosening and tightening using a breaker bar cause it wouldnt budge. it got about 1/4 the way off and snapped the bolt in half.. Can i replace the bolts or what do you recommend?
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I had the same problem man. Wd40 and patience gets you a long way. Yes you can replace the bolts
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I called my exhaust man to see if he could just cut the bolts off. He usually does that for free on my cars and he told me my exhaust is under warranty. Im taking it to mazda (Already spoke to them) and their going to replace the Cat for free. Also good to find out that my engine is covered by the extended warranty as well.. Kinda made my day but changing the coolant tank i broke the radiator.. GD it
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Title should be changed to:
Gutting out my families future because I would rather be cheap, selfish, sh1t in my own nest bastage rather than spend $200 to protect a limited resource required for human life. |
Gutted out mine,Used 1.5" pipe.., Test Drove her..Sounds Great and NO CEL :)
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and NO CEL
yet |
Originally Posted by StealthTL
(Post 4396025)
and NO CEL
yet |
The cel can take many many miles to pop up on some cars. I go 300-500 miles between seeing a cel usually but every now and then its on within 100.
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Gunna do this tonight! Wish me luck! Ill try to post pictures of what I did. Hopefully nothing goes wrong.... BRB gunna get a can of redbull and gut the **** out of my CAT. :)
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Its not hard to do.. I ran a 1.5" pipe threw the center of mine, Left what ever Honeycomb on Sides.. Only Code Im throwin is the 2559,Which I've done the Solenoid connector cleaning and it still throws it :(
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Hey Shore, how's your 8.....did you ever get a CEL for the pipe through the cat?
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Not yet,Just that Pesky 2259 for air solenoid.. A SLIGHT increase in Butt Dyno.. and around 4k you can hear her in Cockpit but sounds nice not harsh.. :)
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Hollowed my cat on the weekend, at first I didn't feel much increase and holy crap did the exhaust ever stink for the first two days. 5 days later the exhaust stinks a lot less and I can definitly feel the power increase :) I think mine might have been slightly clogged and it had some cracks running through the honeycomb filter
Car sounds even better, doesn't seem any louder then before with stock catback MPG hasn't changed, it might go up with MM tune for no cat, Exhaust temps went down a bit as well Be prepared to change all three front studs with basic bolts and nuts, all three broke when taking the cat off, unavoidable even when heating them with torch first To me the worst part of this mod is the smell, luckily after a few days the stink will come down but if you like to cruise with windows down you will be smelling awful exhaust when coming to a stop, or if the wind is pushing from behind you, maybe with a MM tune it might stink a little less. |
i actually dont mind the smell lol ... but then again, i enjoy the smell of pumping gas.
if you want to smell something ruthless, turn off the air emissions pump and turn the car on during a cold start ..... now that will make your eyes water like crazy lol |
Originally Posted by DinSum
(Post 4440590)
Hollowed my cat on the weekend, at first I didn't feel much increase and holy crap did the exhaust ever stink for the first two days. 5 days later the exhaust stinks a lot less and I can definitly feel the power increase :) I think mine might have been slightly clogged and it had some cracks running through the honeycomb filter
Car sounds even better, doesn't seem any louder then before with stock catback MPG hasn't changed, it might go up with MM tune for no cat, Exhaust temps went down a bit as well Be prepared to change all three front studs with basic bolts and nuts, all three broke when taking the cat off, unavoidable even when heating them with torch first To me the worst part of this mod is the smell, luckily after a few days the stink will come down but if you like to cruise with windows down you will be smelling awful exhaust when coming to a stop, or if the wind is pushing from behind you, maybe with a MM tune it might stink a little less. |
Originally Posted by jamesf
(Post 4440622)
I had 88k on the clock when I changed my cat out. Never had been changed before. I doused each nut in PB blaster and with a breaker bar they came off just fine. Bolt is threadlocked, nut comes off.
I Also Used PB blaster and let it soak in for a good 3 hours, I think it might be because of the harsh canadian winters my car has been through its whole 9 year life :/ These bolts break for most people from what I been reading, if they come off easy consider yourself blessed :D |
I'm gonna gut mine, but I just don't want a CEL. I heard that 2004 models don't really get that CEL for some reason. Is that true?
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definitely worth a bump ...
Originally Posted by TeamRX8
(Post 4045369)
Title should be changed to:
Gutting out my families future because I would rather be cheap, selfish, sh1t in my own nest bastage rather than spend $200 to protect a limited resource required for human life. |
Originally Posted by TeamRX8
(Post 4444262)
definitely worth a bump ...
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What i did was, I went to Advance and bought a 2 1/4 in exhaust pipe....it comes about 18 inches longs for 8 bucks. Drove it through and cleaned the pipe out. Then bolted the cat back on. So far i've been 400 miles with no cel. It throughh a pending code once...but it went away on it's on and didn't trigger the light. I bought a new cat from advance for 235 bucks...i'll just put it on if i need it to pass emissions. Forgot to add if the pipe rattles just use some of that muffler putty stuff to seal around it at the inlet side.
I have a 2004 with around 81,000 miles on it.. |
I don't see how anyone who owns a rotary vehicle can be on a high horse in reference to the environment...
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Originally Posted by DarthRX8
(Post 4444353)
I don't see how anyone who owns a rotary vehicle can be on a high horse in reference to the environment...
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