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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 04-16-2014, 12:52 PM   #29
Imrac
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How many cats does our car have? And how many can we get away with on a stock tune to not have a CEL? I would get a tune but I don't want my cel on when I go in for warranty work.
Our cars have two cats, one attached to the exhaust manifold and one in the front pipe.

The one in the front pipe can be removed without a CEL as there is no down stream sensor to monitor it. If you replace your headers with a catless version, you will get a CEL with a stock tune. I have heard the defoulers work OK for getting around that.

Right now I am on a stock tune with headers and get a CEL almost once a day. (50 mile commute.) I just clear it with torque app.
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Old 04-16-2014, 01:55 PM   #30
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if your gona spew all that, you had better ride a bicycle to any destination under 20 miles away, or your a lazy hypocrite. and on top of that, it should be a used bicycle because creating a new one takes energy that runs on fossil fuels. but chances are you dont. if you add up all the engineering and manufacturing that goes in to a car, then bring in the insane amount of damage oil rigs and refineries do, just to get a car to move its insane. then the average person uses all that to move the lazy sack of shit that is the modern human a few miles across town.
lol chances are I do actually - I walk to the train station more than I drive my FR-S.... and commute via electric train to NYC... which uses electricity from a nuclear power plant I guess the point I was trying to make is - the mentality needs to start going the other direction. I'm not spewing anything, no need to be so defensive. Kumbaya
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Old 04-16-2014, 09:13 PM   #31
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Haha touche.
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Old 04-16-2014, 09:38 PM   #32
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Running full catless is douchey and pointless on anything but a track only racecar.

Ask anyone who lived in LA in the 60s and 70s if cats are a good thing.

Cheers
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Old 04-18-2014, 05:46 PM   #33
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Well its not exactly a scam, and its now called global climate change, and yes it is exacerbated by human presence. They just released a study about it recently and it doesn't look good, not to mention the study itself was 'optomistic' because of information withheld. Yeah auto emissions isn't the biggest offender, and it won't bother you or me today, but its my kids who will have to deal with the socioeconomic impact of climate change in 20 years. So please do me a personal favor and not f-up my kids' future environment, they have enough crap to inherit as it is.


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"Releasing a study" doesn't quantify and amount of proven fact.

if you're truly worried about your kids find a new planet... Geneticly modified foods, big pharma medicines, chemicals in everything... its not "global climate change" i'd worry about...

Just try finding a peanut butter with the ingredient "peanuts."

If you don't already realize its next to impossible to find and if you do its Genetically modified peanuts ground for the PB.

So inclosing, screw your concerns because big government and nuclear technology is doing and will do more harm than any catless car
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Old 04-18-2014, 08:31 PM   #34
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"Releasing a study" doesn't quantify and amount of proven fact.

if you're truly worried about your kids find a new planet... Geneticly modified foods, big pharma medicines, chemicals in everything... its not "global climate change" i'd worry about...

Just try finding a peanut butter with the ingredient "peanuts."

If you don't already realize its next to impossible to find and if you do its Genetically modified peanuts ground for the PB.

So inclosing, screw your concerns because big government and nuclear technology is doing and will do more harm than any catless car
Uh. OK. Peanut butter. Fear (or is it faer) peanut butter. Dont see how that relates to individuals choosing to break the law and pollute the air, but thanks for your wisdom!

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Old 04-19-2014, 12:54 PM   #35
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My lawn mower is catless.... So is my weedeater and any bike you find for sale.


Also they changed "global warming" to climate change because they had lost the debate. Now anything abnormal is our fault.

Look at the "fix" taxes and regulations which will never solve any problem. It's about control.


No point except price to not run one cat though. It won't help performance. No need to have two either though.
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Old 04-19-2014, 11:53 PM   #36
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God you guys are making my head hurt...


Reasons to run catless:
- You're cheap
- You're running leaded gas


High flow cat vs a straight pipe is within the statistical noise of a dyno.


Also, it's not about global warming or anything like that, NOX is a serious health risk to your local community. I dunno about you, but I like breathing.


Not to mention you guys are comparing it at idle vs actually driving the car (idle is lean, WOT is rich, hope that person behind you doesn't have their windows down on their eyes are going to be burning).


Comparing it to a diesel is a bit dumb too. Diesel exhaust LOOKS polluting, but it's mostly soot and doesn't have the same health issues.
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Old 04-20-2014, 08:14 AM   #37
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I have had plenty of full catless cars. Never noticed any smell from them. Anyone ride motorcycles? The vast majority if them have no cats...
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Old 04-20-2014, 08:55 AM   #38
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God you guys are making my head hurt...


Reasons to run catless:
- You're cheap
- You're running leaded gas


High flow cat vs a straight pipe is within the statistical noise of a dyno.


Also, it's not about global warming or anything like that, NOX is a serious health risk to your local community. I dunno about you, but I like breathing.


Not to mention you guys are comparing it at idle vs actually driving the car (idle is lean, WOT is rich, hope that person behind you doesn't have their windows down on their eyes are going to be burning).


Comparing it to a diesel is a bit dumb too. Diesel exhaust LOOKS polluting, but it's mostly soot and doesn't have the same health issues.
The new diesel trucks actually exhaust cleaner air than the air its ingesting here in new jersey
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Old 04-21-2014, 07:09 AM   #39
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if your gona spew all that, you had better ride a bicycle to any destination under 20 miles away, or your a lazy hypocrite. and on top of that, it should be a used bicycle because creating a new one takes energy that runs on fossil fuels. but chances are you dont. if you add up all the engineering and manufacturing that goes in to a car, then bring in the insane amount of damage oil rigs and refineries do, just to get a car to move its insane. then the average person uses all that to move the lazy sack of shit that is the modern human a few miles across town.
When will you be joining al gore on the hunt for manbearpig?...
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Old 04-21-2014, 07:26 AM   #40
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haha, never. i never claimed to care about the environment enough preach against running catless. the point i was trying to make was, that thinking that taking a cat on or off your car is going to affect anything is like thinking its a good bet to order a diet coke at mcdonalds.
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