Cleaned out cat - Performance Forum

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Cleaned out cat
Sunday, February 12, 2006 3:25 PM
Would it be possible to hollow out the catalytic converter (for off road use only) on a cav? I believe this might cause problems with the O2 sensor. Is there a way around this to keep a/f mixture correct?

Re: Cleaned out cat
Sunday, February 12, 2006 3:28 PM
Get an high flow cat instead of doing that. A magnaflow (if you take the correct one) won't throw codes and the sensor after the cat have nothing to do with the a/f, it's just there to watch how the cat is working!!





Re: Cleaned out cat
Sunday, February 12, 2006 3:32 PM
How much are we taking for one of these? I'm not looking to spend alot of cash on this.
Re: Cleaned out cat
Sunday, February 12, 2006 3:35 PM
around 69-75$, you could probably find it cheaper by looking at different places..





Re: Cleaned out cat
Sunday, February 12, 2006 3:42 PM
if your going to hollow it out anyways why not just make a test pipe? some people amaze me with time wasting thoughts.



I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
Re: Cleaned out cat
Sunday, February 12, 2006 3:48 PM
if you go on ebay you can get a magnaflow cat for 56 bucks shipped
Re: Cleaned out cat
Sunday, February 12, 2006 4:14 PM
The turbulence caused by a hollowed out cat, would probably cause a loss in power. Personally, I wouldn't waste my time with removing and gutting the cat. It will throw a cell code if it is gutted. (It does with a test pipe, so it would be the same amount of hydrocarbons passed to the second o2 sensor) I'm assuming you already have a cat back exhaust. (because your profile is not filled out) A high flow cat, would yield just as much flow as a test pipe. You can pick one up for under $75.00 so it's not expensive at all.



Re: Cleaned out cat
Sunday, February 12, 2006 5:03 PM
a high flow cat seems to be the way to go then as the cost is not nearly as bad as I would have thought. The only reason for keeping the cat on gutted out and not replacing it with a test pipe was for apperance. They check for a cat when doing certaing.
Re: Cleaned out cat
Sunday, February 12, 2006 10:41 PM
people underestimate cats nowadays. quality highflows flow JUST like a test pipe. so like..................NO DIFFERENCE! plus, they have advantages if N/A ----- (take note of that) they help with low end torque due to scavaging and they help to deepin exhaust tone. so just buy a high flow and forget about the thing.
Re: Cleaned out cat
Monday, February 13, 2006 1:17 PM
I did it and noticed an INCREASE in power, plus I get better gas mileage


Some times the best way to get that tailgater off your but is to light a fart.
Re: Cleaned out cat
Monday, February 13, 2006 1:20 PM
i would just get a high flow cat because i think catalytic converters are an amzing invention, cleanin up our air and such




Re: Cleaned out cat
Monday, February 13, 2006 1:23 PM
Not worth it, won't make you any faster, will throw codes, is a pain in the as to do, a hi flow cat is cheep enough. Do I need to continue?




Semper Fi SAINT. May you rest in peace.



Re: Cleaned out cat
Monday, February 13, 2006 1:23 PM
Yeah, by using lead


Some times the best way to get that tailgater off your but is to light a fart.
Re: Cleaned out cat
Monday, February 13, 2006 5:15 PM
Heres what i did. I took my cat and pounded out all the crap inside then stuck a 2 1/2 inch piece of pipe thru the middle so it still looks like a cat. No turbulance problems no nothing just something that will fake the police out and anyone else that wants to question you haveing a cat or not.


http://www.cardomain.com/ride/2090440


Re: Cleaned out cat
Tuesday, February 14, 2006 10:58 AM
Anyone have a part # from Magnaflow. Went to their website and could not get a highflow cat to come up under chevy cavs. Or, if anyone has a link to this product. Anther question...My stock cat bolts on and off, is the magnaflow a bolt on replacement or will there be welding required? Thanks to all who can help.
Re: Cleaned out cat
Tuesday, February 14, 2006 11:22 AM
94035 is the part number you want.







...don't hate!.. respect people that have talent, even if it is in something you don't like or understand.
Re: Cleaned out cat
Tuesday, February 14, 2006 12:17 PM
You people are retarded. The cat's there for a reason.



Re: Cleaned out cat
Thursday, February 16, 2006 5:16 PM
yea for polution control


http://www.cardomain.com/ride/2090440


Re: Cleaned out cat
Thursday, February 16, 2006 5:22 PM
Try turbotechracing.com.... they have the 94035 for 69.99 + shipping... it would be highly reccomended to weld it in...



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