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Old Feb 11, 2005
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high flow cat

does anyone know who makes a high flow cat for our cars and can we even use them cause ive heard that we cant
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Old Feb 11, 2005
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Yes there are high flow-cats for our cars. As far as I know, only HKS and Megan Racing making one for n/a cars. Turbo applications use their own downpipe. I would go with megan racing because I have one and it adds a nice gain. The HKS one was the one I heard alot of bad things about plus it costs like 150$ while the MR cat costs like 50
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Old Feb 11, 2005
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with the high flow cat does your check engine light come on at all. i heard that the engine will go into a safe mode and not put out the power that it is capable of
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Old Feb 11, 2005
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nope. I did hear that the HKS ones do that. The megan racing has two sensors. I think only one goes in it, but I do know that I have a bosch sensor for my a/f ratio gauge thats connected to the other hole. None of the modifications I did with my car have gave me the check engine light.
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Old Feb 11, 2005
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so you would recomend i buy it
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Old Feb 11, 2005
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no, I would reccommend you buy the megan one instead of the HKS unless you want problems and have the 3x the money then go with the HKS. The mr one did more than enough for what I paid.
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Old Feb 11, 2005
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Oh and btw if you going turbo, you cant use this with the turbo.
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Old Feb 11, 2005
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You apparently need to read up a bit more. Check out the Random Tech. I have a Megan Racing and I'd recommend against it. Almost everyone with the MR that has the correct set-up will throw a CEL.

Spend the extra $ and get the Random Tech.
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Old Feb 11, 2005
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doesn't a random tech not throw a CEL? i thought the gains weren't worth it for replacing the stock cat. what about exhaust noise i'm sure that's increased.
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Old Feb 11, 2005
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Originally Posted by teampointless
You apparently need to read up a bit more. Check out the Random Tech. I have a Megan Racing and I'd recommend against it. Almost everyone with the MR that has the correct set-up will throw a CEL.

Spend the extra $ and get the Random Tech.
what do you mean by throwing a CEL.

I also said that the only two that I know of are hks and megan racing feel free to add.
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Old Feb 11, 2005
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The ODB II exhaust sensors will though a trouble code
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Old Feb 11, 2005
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Meaning that the check engine light (CEL) will come on.
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Old Feb 11, 2005
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Here is the megan racing test pipe



Here is the Random Tech high flow Cat.

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Old Feb 11, 2005
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I havent had any problems with it. Make sure your installing it right. Its ideal to have a car stand so you can see everything.
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Old Feb 11, 2005
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so lets say my engine light did come on. Would that be bad? if so why would it be bad its just a light and especially cuz u know what you did to it thats making it come on. If it bothers that much just change back to factory. But it wont affect performance because of that light would it.
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Old Feb 11, 2005
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The car is a operated my a engine control unit (ecu)
The unit uses the ODB II sensors located on the exhaust to adjust the air/fuel ratios.
It can effect the overall performance of the car.
That is why some people use an O2 simulator to fool the ECU into believing nothing has changed.
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Old Feb 11, 2005
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Random Tech is a true fully functional high flow cat. It retains all stock o2 sensors and their positions and is guaranteed not to throw a CEL by RT.

Megan is a resonator, not an actual cat, which throws a CEL.

Spend the extra money and buy a RT.

We are an authorized distributor of their parts too!
http://dezod.com/cat_high.cfm

http://www.randomtechnology.com/contact.html
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Old Feb 11, 2005
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ok so lets say I installed the mr cat right now. Will my cel come on immediately or after usage.
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Old Feb 11, 2005
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Within about 5 minutes. Unless you have a problem with your ECU that's pre-existing.

The problem with it throwing a CEL and just leaving it would be that even though you know it's from the resonator, you won't know if another problem comes up, because your CEL is already tripped.
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Old Feb 11, 2005
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Many members has been running megan high flow cat, yes, It will throw CEL.
Do not affect anything but CEL, Will not go to "Limp" mode.

Also, there are plenty people with RT high flow and they do throw CEL as well.
No big deal really.
For performance, you won't notice much anyways, go with cheaper route.

Oh, who says you can't use high flow cat with turbo?
You can.
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Old Feb 11, 2005
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I just put on the Megan pipe, CEL came on shortly after...here's a link that's supposed to work pretty well and it's CHEAP!!! that should fix the CEL..check it out

http://www.ephatch.com/forum/showthread.php?t=49779
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Old Feb 11, 2005
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i just wanted to get rid of my cat to **** the tree huggers off...!!! LOL
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Old Feb 11, 2005
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wow, what a retard.
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Old Feb 11, 2005
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Originally Posted by civicvtec1ps
For performance, you won't notice much anyways, go with cheaper route.
why even bother and save the money?
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Old Feb 11, 2005
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Ive had a RT cat. and it doesnt throw a CEL.
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Old Feb 11, 2005
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Originally Posted by teampointless
wow, what a retard.
not much for takin' a joke eh???
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Old Feb 11, 2005
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Originally Posted by civicvtec1ps
Many members has been running megan high flow cat, yes, It will throw CEL.
Do not affect anything but CEL, Will not go to "Limp" mode.

Also, there are plenty people with RT high flow and they do throw CEL as well.
No big deal really.
For performance, you won't notice much anyways, go with cheaper route.

Oh, who says you can't use high flow cat with turbo?
You can.
Most turbos come with their own downpipe. If customizing wasnt a problem, you could fit anything.
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Old Feb 11, 2005
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i have a megan racing downpipe ill sell for 50 bucks plus shipping. i have straight pipe from my turbo back so i have no need for this.
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Old Feb 11, 2005
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Originally Posted by exturbo6
i have a megan racing downpipe ill sell for 50 bucks plus shipping. i have straight pipe from my turbo back so i have no need for this.
this is what im talking about.
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Old Feb 11, 2005
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i have a high flow cat, made by obx. brand new.its for sale $100 + shipping
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