# Gutting a catalytic converter **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [June 25, 2008, 2:57pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599 "2008-06-25T14:57:13Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![AShort](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ashort/32/4947_2.png) [@AShort](https://forums.speedlife.net/u/AShort)\ **Post date:** [June 25, 2008, 2:57pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/1 "2008-06-25T14:57:13Z")
what’s the easiest way to gut a cat? Is it a matter of jamming something down in there to get it all or out, sawzall? any input is appreciated…thanks 🙂 ---
**Author:** ![fiend540](https://avatars.discourse-cdn.com/v4/letter/f/bcef8e/32.png) [@fiend540](https://forums.speedlife.net/u/fiend540)\ **Post date:** [June 25, 2008, 3:04pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/2 "2008-06-25T15:04:52Z")
air chisel and a long flat bit is what I used, was pretty easy ---
**Author:** ![AShort](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ashort/32/4947_2.png) [@AShort](https://forums.speedlife.net/u/AShort)\ **Post date:** [June 25, 2008, 3:09pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/3 "2008-06-25T15:09:38Z")
> [@fiend540](#): > > air chisel and a long flat bit is what I used, was pretty easy hmmm…that’s a good idea, i just don’t have an air chisel haha ---
**Author:** ![theblue](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/theblue/32/5074_2.png) [@theblue](https://forums.speedlife.net/u/theblue)\ **Post date:** [June 25, 2008, 3:10pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/4 "2008-06-25T15:10:37Z")
too poor to buy a test pipe? wouldn’t you rather have the part to put back in when you sell or to sell straight up? ---
**Author:** ![Schema](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@Schema](https://forums.speedlife.net/u/Schema)\ **Post date:** [June 25, 2008, 3:12pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/5 "2008-06-25T15:12:27Z")
sell the cat on ebay for a hundred bucks and put a pipe in there ---
**Author:** ![AShort](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ashort/32/4947_2.png) [@AShort](https://forums.speedlife.net/u/AShort)\ **Post date:** [June 25, 2008, 3:20pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/6 "2008-06-25T15:20:19Z")
> [@theblue](#): > > too poor to buy a test pipe? yes. ---
**Author:** ![AKA-FERRARI](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/aka-ferrari/32/7260_2.png) [@AKA-FERRARI](https://forums.speedlife.net/u/AKA-FERRARI)\ **Post date:** [June 25, 2008, 3:32pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/7 "2008-06-25T15:32:36Z")
pry-bar worked best for me ---
**Author:** ![Cavi\_Mike](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cavi_mike/32/5217_2.png) [@Cavi\_Mike](https://forums.speedlife.net/u/Cavi_Mike)\ **Post date:** [June 25, 2008, 3:48pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/8 "2008-06-25T15:48:22Z")
> [@Schema](#): > > sell the cat on ebay for a hundred bucks and put a pipe in there QFT. Cars are actually now stolen just for the platinum that is inside catalytic converters. But if you really must, a BFS(big fuckin screwdriver) and a hammer works just fine. ---
**Author:** ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)\ **Post date:** [June 25, 2008, 3:54pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/9 "2008-06-25T15:54:17Z")
hammer a pipe through it. That way it will pass a visual inspection as well. ---
**Author:** ![Darksyde](https://avatars.discourse-cdn.com/v4/letter/d/ed655f/32.png) [@Darksyde](https://forums.speedlife.net/u/Darksyde)\ **Post date:** [June 25, 2008, 4:15pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/10 "2008-06-25T16:15:57Z")
> [@boardjnky4](#): > > hammer a pipe through it. That way it will pass a visual inspection as well. been there done that, worked great. Better done off the car if possible though. lol ---
**Author:** ![AShort](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ashort/32/4947_2.png) [@AShort](https://forums.speedlife.net/u/AShort)\ **Post date:** [June 25, 2008, 4:29pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/11 "2008-06-25T16:29:14Z")
i’ll try a pipe…thanks for the input :tup: ---
**Author:** ![rdandy5875](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rdandy5875/32/7511_2.png) [@rdandy5875](https://forums.speedlife.net/u/rdandy5875)\ **Post date:** [June 25, 2008, 4:46pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/12 "2008-06-25T16:46:28Z")
> [@Cavi Mike](#): > > But if you really must, a BFS(big fuckin screwdriver) and a hammer works just fine. +1, did a few bikes this way worked fine. ---
**Author:** ![Paulo](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/paulo/32/7328_2.png) [@Paulo](https://forums.speedlife.net/u/Paulo)\ **Post date:** [June 25, 2008, 4:47pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/13 "2008-06-25T16:47:26Z")
Out of curiosity, what are you doing this on, and why? ---
**Author:** ![bpipe95](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bpipe95/32/7294_2.png) [@bpipe95](https://forums.speedlife.net/u/bpipe95)\ **Post date:** [June 25, 2008, 5:07pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/14 "2008-06-25T17:07:43Z")
it will slow flow too… it creates a turbulent air chamber when you gut a cat and can rob power. ---
**Author:** ![dawn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dawn/32/7209_2.png) [@dawn](https://forums.speedlife.net/u/dawn)\ **Post date:** [June 25, 2008, 5:27pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/15 "2008-06-25T17:27:04Z")
> [@Paulo](#): > > Out of curiosity, what are you doing this on, and why? x2 ---
**Author:** ![AShort](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ashort/32/4947_2.png) [@AShort](https://forums.speedlife.net/u/AShort)\ **Post date:** [June 25, 2008, 5:41pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/16 "2008-06-25T17:41:46Z")
> [@Paulo](#): > > Out of curiosity, what are you doing this on, and why? > [@dawn](#): > > x2 the slowbalt. I’m also removing the muffler too, the exhaust sounds like shit and gets raspy. ---
**Author:** ![Fry](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fry/32/7284_2.png) [@Fry](https://forums.speedlife.net/u/Fry)\ **Post date:** [June 25, 2008, 5:49pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/17 "2008-06-25T17:49:23Z")
Did you come up with this on your own or is this a well known Cobalt ghetto mod? It just doesn’t seem like a very good idea, but I guess I don’t know for sure. I thought modern cats didn’t really cause much of a pressure drop. :shrug: ---
**Author:** ![greenbull](https://avatars.discourse-cdn.com/v4/letter/g/bc8723/32.png) [@greenbull](https://forums.speedlife.net/u/greenbull)\ **Post date:** [June 25, 2008, 5:52pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/18 "2008-06-25T17:52:53Z")
wait until you gut the cat then. even raspier when cold. i just got a used 3 inch with highflow cat and 2.5 bolt in. save some penies…buy one with a highflow cat from someone on [css.net](http://css.net). then scrap your stocker. you will pass visual inspection and possibly make money off the deal. ---
**Author:** ![95Z28](https://avatars.discourse-cdn.com/v4/letter/9/85e7bf/32.png) [@95Z28](https://forums.speedlife.net/u/95Z28)\ **Post date:** [June 25, 2008, 5:57pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/19 "2008-06-25T17:57:34Z")
> [@Fry](#): > > It just doesn’t seem like a very good idea, but I guess I don’t know for sure. I thought modern cats didn’t really cause much of a pressure drop. :shrug: You’re right. Sell the cat, buy a test pipe or a high flow cat. The high flow cat would be best. Removing cats will not help with rasp. ---
**Author:** ![AShort](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ashort/32/4947_2.png) [@AShort](https://forums.speedlife.net/u/AShort)\ **Post date:** [June 25, 2008, 5:57pm UTC](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599/20 "2008-06-25T17:57:50Z")
> [@greenbull](#): > > wait until you gut the cat then. even raspier when cold. i just got a used 3 inch with highflow cat and 2.5 bolt in. save some penies…buy one with a highflow cat from someone on [css.net](http://css.net). then scrap your stocker. you will pass visual inspection and possibly make money off the deal. maybe i’ll do that then, im definitley getting rid of the stock muffler though. [Next page](https://forums.speedlife.net/t/gutting-a-catalytic-converter/50599.md?page=2)