catalytic converter options - NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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catalytic converter options

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Old 11-07-2005, 12:24 AM
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My catalytic converter has a massive hole in it and i am looking for a replacement. I live in eastern washington where the emission standards aren't strict. My options are an oem replacement, high flow cat, or straight pipe. What do you suggest and why? Thanks
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Old 11-07-2005, 12:28 AM
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Depends on what you're looking for.



Want to keep the car as stock and quiet as possible? OEM Replacement



Want a little extra power at the cost of replacing the cat a bit more frequently (I've heard that this option only lasts about 2 years)? High Flow Cat



Don't care about emmissions or noise at all? Test Pipe
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Old 11-07-2005, 03:37 PM
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yep, id go for a high flow/aftermarket. if you want the rest of the time run an open pipe
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Old 11-07-2005, 03:41 PM
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If you want it loud go straigt, if you want it somewhat quiet, get a cat.
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Old 11-07-2005, 07:42 PM
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I dont mind noise, i am trying to make a little power here and there. I have an aftermarket catback exhaust and a rotten catalytic converter seemed to be robbing it of some airflow, so straight pipe is the way to go?
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Old 11-07-2005, 08:36 PM
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Depending on you engine setup, yes. I have a RB header, 3 inch donkey dick pipe to two three inch magnaflows single out the drivers side of the car.
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Old 11-07-2005, 09:48 PM
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a new high flow converter will flow just fine, for the 3hp or so difference go with the converter, your clothes, nose, and eyes will thank you
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Old 11-07-2005, 10:41 PM
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True!
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Old 11-07-2005, 11:16 PM
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Yeah, I'm in the same boat, apparently mine have been getting clogged up (I can't wait to see the difference) so I just got a straight pipe for now - I'll be going with Racing Beat because I know how loud it'll be.
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