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post #1 of 41 (permalink) Old 10-07-2009, 02:45 PM Thread Starter
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cat gutting the easy way (not as gross as it sounds)

so a neighbor of mine with a really loud jeep wrangler told me how he did it. he took his jeep to the powerwash, stuck the spray gun up the exhaust pipe and pulled the trigger. i guess it guts them very efficiently.

but with our cars, we have 3 cats. would this gut all 3? would it gut the third then start on the other 2? how do 4.6 birds sound with gutted cats?

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post #2 of 41 (permalink) Old 10-07-2009, 03:43 PM
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post #3 of 41 (permalink) Old 10-07-2009, 03:46 PM Thread Starter
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lol i'm guessing you're telling me it's a horrible idea.

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post #4 of 41 (permalink) Old 10-07-2009, 03:54 PM
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don't ever take advice from said neighbor again....

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post #5 of 41 (permalink) Old 10-07-2009, 04:02 PM
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I have heard of this method for gutting mufflers packed with fiberglass, but not for cats full of metal. Well, okay, I've used it on mufflers in the past myself. Anyway, that's probably why his jeep is loud...gutted mufflers instead of cats.

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post #6 of 41 (permalink) Old 10-07-2009, 04:21 PM Thread Starter
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he said it did his cat too. what problems would this strange idea cause?

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post #7 of 41 (permalink) Old 10-07-2009, 04:34 PM
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he said it did his cat too. what problems would this strange idea cause?
I would like to see someome find a long enough flexible enough pressure washer wand to snake it all the way through to the cats.
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post #8 of 41 (permalink) Old 10-07-2009, 05:00 PM
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Might be easier to pull your plugs and fill the cylinders with water. Re-install the plugs, fire her up and blow the stuff right out the back of the exhaust. LOL

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post #9 of 41 (permalink) Old 10-07-2009, 05:29 PM
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Well for this to work the cats would have to be hot and then you have the issue of getting into them and keeping them hot, then the safety issue of exploding metal.

If want to get rid of them cut off.

If all else fails get a bigger hammer!

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post #10 of 41 (permalink) Old 10-07-2009, 05:58 PM
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Originally Posted by Buckcreekbilly View Post
Might be easier to pull your plugs and fill the cylinders with water. Re-install the plugs, fire her up and blow the stuff right out the back of the exhaust. LOL
Don't forget to flush the crankcase with water while it's running.....

Seriously.....why is "gutting cats" always an issue? Nothing good comes from it. Cut it off and replace it with a straight pipe if the thing is really so bothersome. Done.


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......how do 4.6 birds sound with gutted cats?
Just like any other vehicle running with gutted cats......Like a bumblebee riding his bumblebee-sized lawn tractor, pissed off at the world because he's trapped inside a metal bucket with his little tractor. Times 10.

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post #11 of 41 (permalink) Old 10-07-2009, 06:01 PM Thread Starter
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If want to get rid of them cut off.
that's another problem. davis county emissions are fairly strict so i have to keep them on. but they only do a visual inspection of the cats just to make sure they're there. and that's if you get the guy who's really anal about that.

he says that the pressure from the water should do it just fine. this guy also has this goofy little POS motorcycle that sounds like blowing bubbles in your chocolate milk. don't know if that was the intention, something he screwed up, or just what happens when it's straight piped.

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post #12 of 41 (permalink) Old 10-07-2009, 06:06 PM
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that's another problem. davis county emissions are fairly strict so i have to keep them on. but they only do a visual inspection of the cats just to make sure they're there. and that's if you get the guy who's really anal about that.
In this case, a proper sized pipe shoved through the cat will do the trick, and then it's becomes a "pipe with a fancy heatshield"....still looks stock.

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post #13 of 41 (permalink) Old 10-07-2009, 06:16 PM Thread Starter
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lol that could work but i'd still have to unbolt the pipes and put them back together. never done it but it looks like a major pain. the powerwash idea was quick and easy but i guess it has a major downside.

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post #14 of 41 (permalink) Old 10-07-2009, 06:23 PM
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When you do this can you take a video of the work and start up so that others can see how this is done?

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post #15 of 41 (permalink) Old 10-07-2009, 06:32 PM Thread Starter
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i'm not gonna flush and film it. that would end up in the "morons who shouldn't have cars" section of you tube. he told me that's how he did it so i thought i'd come here and double check with people that actually know what they're talking about. hasn't gotten a warm response. and i just talked to a mechanic friend of mine and he said last time he gutted a cat he had to beat the stuff out with a hammer and chisel. certainly alot more pressure than any ol powerwash.

although, once i pull the cats out of my parts car i'll gut those, swap em, and may be powerwash just the cat to see if anything at all happens.

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post #16 of 41 (permalink) Old 10-07-2009, 08:08 PM
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i'm not gonna flush and film it. that would end up in the "morons who shouldn't have cars" section of you tube.....
YES!!! I am keeping that in my sig! lol

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.... and maybe powerwash just the cat to see if anything at all happens.
PETA is gonna hate that. So will your cat.


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post #17 of 41 (permalink) Old 10-07-2009, 08:13 PM
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Your neighbor is a moron.

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post #18 of 41 (permalink) Old 10-07-2009, 08:56 PM
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So your county only does visual?
Because unless you either get the EEC flashed or O2 jumpers you will be throwing codes.

If all else fails get a bigger hammer!

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post #19 of 41 (permalink) Old 10-07-2009, 11:28 PM
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I don't know whats dumber, your neighbor for doing this, or you for considering doing the same.

Just wow...

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post #20 of 41 (permalink) Old 10-07-2009, 11:52 PM Thread Starter
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So your county only does visual?
well they just visually check to make sure it's there. other than that i think most shops here just hook to the obd2 for the info. although i stopped by the vw dealer the other day and saw in their shop that they actually hook to the tail pipe and check the exhaust with their computer, rather than your car's.


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I don't know whats dumber, your neighbor for doing this, or you for considering doing the same.
i know he's a moron. that's why i'm asking rather than just going to the wash and doing it. i've never looked inside my exhaust pipes or cats, i don't know what's in there. i was taking his strange ideas to people who know what they're doing, not hoping for responses from a flaming dbag.

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post #21 of 41 (permalink) Old 10-08-2009, 12:09 AM
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There's a nice set of high flow cats and downtubes for sale from jason in the for sale area thru an eBay link.

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post #22 of 41 (permalink) Old 10-08-2009, 12:09 AM
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Quote:
Originally Posted by billboehm View Post



i know he's a moron. i've never looked inside my exhaust pipes or cats, i don't know what's in there. i was taking his strange ideas to people who know what they're doing, not hoping for responses from a flaming dbag.
If you had even half of a brain you'd realize how stupid and catastrophic spraying high pressure water up an exhaust is without having to ask for anyones advice. A four year old could figure that out.

BTW whats your reason for wanting them gutted again? oh wait let me guess, impress the tweens from the sh!tty noise and gain mad power right?

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post #23 of 41 (permalink) Old 10-08-2009, 12:16 AM
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post #24 of 41 (permalink) Old 10-08-2009, 12:30 AM Thread Starter
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well aren't you an angry little prick. go change out your tampon, cuz you're definitely on the rag.

i didn't know what a stock diameter exhaust with gutted cats would sound like. that's why i asked SPECIFICALLY about the sound of gutted cats. why do you have to be a horse's a**? and horsepower yes. of course i want more horses, who doesn't? and sound? cuz even with my straight through magnaflows it still sounds like those 3 cats are choking the s**t out of a perfectly good v8!

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post #25 of 41 (permalink) Old 10-08-2009, 12:52 AM
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so a neighbor of mine with a really loud jeep wrangler told me how he did it. he took his jeep to the powerwash, stuck the spray gun up the exhaust pipe and pulled the trigger. i guess it guts them very efficiently.

but with our cars, we have 3 cats. would this gut all 3? would it gut the third then start on the other 2? how do 4.6 birds sound with gutted cats?


please videotape yourself doing this.

I want to see you force so much water thru your exhaust it ends up in the motor.



Seriously...is it so hard for people to just take the car to an exhaust shop or bust out a welder and literally cut the cats off...and weld in straight pipe?
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post #26 of 41 (permalink) Old 10-08-2009, 12:53 AM
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Quote:
Originally Posted by billboehm View Post
well aren't you an angry little prick. go change out your tampon, cuz you're definitely on the rag.

i didn't know what a stock diameter exhaust with gutted cats would sound like. that's why i asked SPECIFICALLY about the sound of gutted cats. why do you have to be a horse's a**? and horsepower yes. of course i want more horses, who doesn't? and sound? cuz even with my straight through magnaflows it still sounds like those 3 cats are choking the s**t out of a perfectly good v8!
heh, how old are you? 16? 17? You act your age well.

You want to know how it sounds try the search feature, you'll find the same results, gutted cats sound like **** and you'll experiance zero gains in power.

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post #27 of 41 (permalink) Old 10-08-2009, 07:48 AM
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okay, just envision the exhaust on your car.....think how its settup....okay, got it? good.
Now, according to your profile, you have a V8, which has twice pipes on the back. with me so far? good. Now, think real hard how those 2 pipes are connected.....think.....think.....can you see the first problem?......actually, the first problem would be getting the pressure washer wand past the internals off the muffler....it ain't goin through.

just think about stuff like this next time you ask.





but, I'm really hoping you try and do it anyway...

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post #28 of 41 (permalink) Old 10-08-2009, 09:40 AM
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well aren't you an angry little prick. go change out your tampon, cuz you're definitely on the rag.
Lol... Wow... who are you? Pick your battles man.

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post #29 of 41 (permalink) Old 10-08-2009, 10:02 AM
 
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so, lets put all of the other retarded reason why this wouldn't work aside and assume for a second that it does.

How the hell do all the bits of "blasted" ceramic come out?? even if the honeycomb was blasted apart it's still inside the housing, and isn't likely it's going to be shot out the back.
likely just plug it up.

so what's happened here is a neighbour heard from a guy who knows a guy who knew a guy that thought about doing this, and has spread this onto you as solid known information.

stop being friends with this neighbour.
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post #30 of 41 (permalink) Old 10-08-2009, 10:50 AM Thread Starter
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How the hell do all the bits of "blasted" ceramic come out?? even if the honeycomb was blasted apart it's still inside the housing, and isn't likely it's going to be shot out the back.
these are exactly the things i didn't know were inside there. thank you for a straight answer. i knew there was something in there but didn't know what, how big, or how solid it's there.

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stop being friends with this neighbour.
lol don't worry i'm not. he looks like the creepy biker guy that's doing donuts in the street at 2 in the morning. i just occasionally borrow a tool or 2 from him.

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