97loudcut Posted June 1, 2006 Report Posted June 1, 2006 I want to remove my cat but I found out I will need to o2 simulators and at $75 a pop I decided that it isn't worth it. Can I just gut my cat and achieve the same results without spending the extra money on the o2 simultors? Quote
pwmin Posted June 1, 2006 Report Posted June 1, 2006 you should only need one and you can get one for like 30 bucks if you have this same type sensor, which i believe you should. http://www.zzperformance.com/grand_prix/products1.php?id=179 Quote
97loudcut Posted June 1, 2006 Author Report Posted June 1, 2006 so I would only need one of those and it goes after the cat? Quote
GutlessSupreme Posted June 1, 2006 Report Posted June 1, 2006 The EP O2 emulator is standalone and as such does not need to be located anywhere near the exhaust system. schwing! it just plugs into the harness where the second O2 sensor was. It doesn't get mounted anywhere on the exhaust. Quote
97loudcut Posted June 1, 2006 Author Report Posted June 1, 2006 so basically 1.) is that what I will need 2.)would i get the same results from just gutting the cat Quote
slick Posted June 1, 2006 Report Posted June 1, 2006 Gutting the cat will increase the air flow, thats it. Your really not going to notice a humongous difference, unless your cat has collapsed on itself, which I am sure it hasn't. Yes, you simply plug in that O2 sensor thing that is on zzp's website into the o2 sensor plug back by the cat, and let it hang(I would atleast zip tie it up or something). Quote
97loudcut Posted June 1, 2006 Author Report Posted June 1, 2006 so does everyone recommend gutting the cat and saving the money or just paying the $30 for the o2 emulator and taking it off comletly? Quote
JakeMetz63 Posted June 1, 2006 Report Posted June 1, 2006 I reccomend keeping the cat, dont rape the enviroment more then you have to. Quote
pwmin Posted June 1, 2006 Report Posted June 1, 2006 hell, ill even sell you mine since now i can use my powrtuner on my riv and can just stop the code from reporting. its slightly used, so id sell it to you for like 30 shipped (negotiable). youre still going to need it if you gut the cat. itll be like not being there at all. since you gotta weld it anyway, id just cut it out unless you have a visual emissions test or something. Quote
97loudcut Posted June 1, 2006 Author Report Posted June 1, 2006 ok can i just get a straight answer? no i dont want a high flow cat and im not going to kill the enviroemtn with my 150 miles a week gutted cat, not cat, leave it lone and i want EVERYONES iinput Quote
slick Posted June 1, 2006 Report Posted June 1, 2006 Do they do emmisions where you live? Or atleast a visual check? If they do a visual check, i'd gut it. If they don't, then cut it out. Quote
J Posted June 2, 2006 Report Posted June 2, 2006 take it off, no one will look under your car. Get the o2 emulator and call it a day, just make sure they weld it up nice and tight. Go to a shop and ask them to take it off for you, you'll pay cash no reciept. Later Jay Quote
2CUTTYS Posted June 2, 2006 Report Posted June 2, 2006 I would keep it on or get a high flow cat. Dont be harming the enviroment for better air flow and sound Quote
J Posted June 2, 2006 Report Posted June 2, 2006 Bah! you drive a w-body, so that harms the enviornment, it pisses oil, gas, coolant, brake fluid. Don't worry about a gutted/no cat! Quote
97loudcut Posted June 2, 2006 Author Report Posted June 2, 2006 dude I am not harming the enviroment. I'm sure my driving (like 150 miles a week) and the emissions that my 3100 unleaded fuel are not going to kill any trees. I am looking for a better running and better performance 3100. I have heard from so many people that taking the cat off makes the engine run so much better. Also it will make the exhaust sound much more aggresive. Now if anyone has anything to say about the negatives of a removed cat (BESIDES F*&^KIN ENVIROMENT) then lemme know Quote
Supreme Cutlass Posted June 2, 2006 Report Posted June 2, 2006 dude I am not harming the enviroment. I'm sure my driving (like 150 miles a week) and the emissions that my 3100 unleaded fuel are not going to kill any trees. I am looking for a better running and better performance 3100. I have heard from so many people that taking the cat off makes the engine run so much better. Also it will make the exhaust sound much more aggresive. Now if anyone has anything to say about the negatives of a removed cat (BESIDES F*&^KIN ENVIROMENT) then lemme know Everybody is going to know you took it off because of the smell, if that counts. Other than that, there isn't that much negative to removing the cat.. Quote
jeremy Posted June 2, 2006 Report Posted June 2, 2006 holy bunch of tree huggers in this thread I say just get a high flow cat, not because of the environment, but because I would be afraid that the straight pipe would lead to increase rasp... Quote
digitaloutsider Posted June 2, 2006 Report Posted June 2, 2006 Simple answer: There's nothing wrong with it on most OBD-II cars, because very few states use a sniffer on them. If your state uses a sniffer, there's a chance your car will fail emissions. If your state only does the computer diagnostics (or you don't want to see an SES light), then get an O2 simulator. As far as sound goes, I can't say my Regal sounds that much "better" without it, it's just louder. A good, healthy cat shouldn't cause any severe performance problems in most engines (especially a 3100), so I doubt you'll really see much there. I'm not sure if the '96-'97 Cutlasses have a U-bend for the second O2 sensor, but remove that before you even touch the cat, since that would be your main performance issue to begin with. Quote
jeremy Posted June 2, 2006 Report Posted June 2, 2006 FWIW: there are NO inspections, visual/sniffer/cpu or anything Quote
slick Posted June 2, 2006 Report Posted June 2, 2006 No U-bend on it. At Shaun stated, with a 3100, your really going to see no difference between a perfectly functioning cat. than one with a cat. removed. Now, if the cat. is not functioning properly, which usually happens if you are running rich as hell, or your O2 sensor(s) are bad, then there WILL be a noticeable difference. As for the sound difference, it will most likely be a bit louder. The cat. does help quiet it down some, but as also stated, it may be a bit more raspier as well. Not sure if thats what you are looking for or not though. Quote
97loudcut Posted June 2, 2006 Author Report Posted June 2, 2006 bump more input or advice just to let everyone know the car has 117k miles on it and it is my daily driver BUT I don't do alot of driving and since this fall I will be getting an apartment right next to Oakland University so I will hardly be driving it. basically just making sure that this is a safe move (please no enviromental specs) Quote
97loudcut Posted June 5, 2006 Author Report Posted June 5, 2006 bump just looking for more advice Quote
J Posted June 5, 2006 Report Posted June 5, 2006 i'd cut it off and replace it with a resonator (glasspack) and be done with it. Thats what i will be doing when i get my ass in gear. Quote
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