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Old 10-01-2004, 05:48 PM   #1
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Default Catalytic converter problems.. SOLVED!!!!

Hey, im new to this board.. my names Matt im 18 years old and from northern Ontario.

I drive a 1995 SSEi with 180,000km. For the past month or so ive been noticing a change in exhaust tone at low and mid rpms, my first guess was the cat. Two days ago it started to sound like a giant baby rattle under there so i knew for sure.. Took a drive to Canadian Tire, bought me 2 flared 2.5" X 16" pipes.

Today i took the car into auto class, we put her on the hoist, chopped off the cat, and clamped on the pipes.

All this took me and my buddy Dustin about 45 minutes to complete and the results are impressive.

The car is breathing very noticeably clearer, and has a very nice rumble tone to it now. Its not even raspy. There is also no emmission laws up here until 2010, so were gonna do the same to his Dakota which is experiencing the same problem.

A quick and CHEAP way to avoid spending $300+ on a brand new Cat. Costed me under 20 bucks to repair. (FREE LABOUR)

I would recommend this to anyone with Cat problems, even just for a temporary setup when funds permit the purchase of a new Cat. I dont plan on replacing it anytime soon as im more than satisfied with my results.


~Matt
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Old 10-01-2004, 05:55 PM   #2
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We don't really condone that type of work around here, especially since it'* illegal as hell down in the States, and some areas of Canada. Down here, if you get turned in, the narc gets $250, so you won't see people brag it up too much.

The environmental thing to do would be to put a performance unit back on the car.
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Old 10-01-2004, 06:03 PM   #3
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Are you sure it wasnt a heat shield or something like that causing the noise?
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Old 10-01-2004, 06:05 PM   #4
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Here in this part of northern ontario we dont have regulations on emmissions, and vehicles dont go through an emmission test. I'm glad i don't live in those parts of the US that have emmission regulations. As a student in highschool, i happen not to have a very large budget and don't have 300 dollars to spend on a high flow catalytic converter to reduce green house gases by .0000001%... yet...

I'm sorry that you don't approve of my work. I will do it the ecologically correct way next time.
I didn't expect to get bashed for repairing my car.

To answer the heatshield question :
I'm 100% positive it was the cat because when it took it off, i tilted it downwards and i could hear the blocks inside rattling around. It is cooked, probably wasnt even doing its job in the first place, so no harm done by taking it off.
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Old 10-01-2004, 06:09 PM   #5
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Just to be on the safe side, check with the rest of the Ontario members....BUT, I think it'* still illegal for you to remove the Cat, regardless of the lack of emissions testing. I don't have testing here, either, yet it'* still illegal to remove the Cat.

If that'* true, and you get caught or turned in, it could be costly.
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Old 10-01-2004, 06:10 PM   #6
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300$?? I spent $30 USD for my magnaflow on good ol' ebay. And I think every state has emession "control,testing,rules,etc" here in the U.*. Thats why cars come with them.
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Old 10-01-2004, 06:15 PM   #7
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Thanks for the warning Will, but i contacted my local OPP branch, explained my situation and they said don't worry about it as there is a bylaw which says cars in this jurisdiction don't require an emmission control device.

There is simply too many offroad vehicles here without them and our town is small enough (10,000 in proportion to a huge city like Toronto) to permit this.

I wouldn't do something i can get penalized for. I know an officer who drives a Chrysler Intrepid and he did the same thing because his gas tank was sugared and the sugar (among other things) plugged his cat
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Old 10-01-2004, 06:55 PM   #8
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I'd suggest getting around $75 (CAN) together and look on ebay for a Magnaflow Carsound 2.5" high flow cat. I just bought mine last night for $55.57 (US) and that included free shipping. I believe the seller added something like $7 (CAN) to ship to Canada after converting to Canadian currency.
Although you might have gained by going from a plugged cat to no cat, it is now too free-flowing. You still need a little bit more back-pressure to get the optimum amount of low end turque.
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Old 10-01-2004, 08:02 PM   #9
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Another way to look at it is don't be part of the problem, be part of the solution. One car without a cat puts out as much pollutants as 100 cars that have them. Regardless of the lack of legal requirement for emissions testing, the responsible thing to do is to keep your car in as clean of a condition as possible.
Sorry for the lecture but if enough people were to do this, then our governments will place even more stringent controls on new cars, penalizing the people who are driving the cleanest cars.
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Old 10-02-2004, 02:09 AM   #10
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My car is actually very clean. I clean it twice a week.

I am satisfied with the excellent gas mileage i am getting with my current setup. I talked to my uncle who owns and runs an exhaust shop here in town and he said its one of the best things to do for gas mileage.

Apparently alot of my friends have already done this, just never talk about it before.

Im so glad i caught this in time before i started cooking my valves.

Do any of you guys smoke, or dispose of nonbiodegradeable objects in the trash? if so, maybe you should consider quitting and recycling all your waste as your adding to the same greenhouse effect and pollution as me..

Just my $0.02 though
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