RacerJJ Posted June 27, 2006 Report Share Posted June 27, 2006 Anybody have one or know where to find one? I did a lot of searching and came up empty. Thanks! Quote Link to comment Share on other sites More sharing options...
misterp Posted June 27, 2006 Report Share Posted June 27, 2006 (edited) I just bought a piece of 3/8" steel dowell (rebar might work better) and used it and a hammer to bust-up the internal packing and then shake what comes loose out onto the concrete; it took a good hour to do both sides, the driver's side is a PITA but with a little perseverance can be done this way and there is no external sign that you've emptied the cats. A bit barbaric but it got the job done. Remember to use penetrating oil 3-4 days ahead of time on the exhaust flange nuts, then again 24-hrs prior and a third time a few hours prior - you will not have any issue breaking that hardware loose with hand tools. You might also consider new gaskets from the dealer for reassembly ($18 pr). You will also need to do something about the rear O2 sensors, either disable in PCM or use "O2 simulators". Mr. P. Edited December 7, 2007 by Mr. P. (see edit history) Quote Link to comment Share on other sites More sharing options...
Krambo Posted June 27, 2006 Report Share Posted June 27, 2006 I did the similar thing. I used a long screw driver and just poket until it was all out. You could always just run a few tanks of CAM-2 through it Quote Link to comment Share on other sites More sharing options...
packjh Posted June 28, 2006 Report Share Posted June 28, 2006 wow this is alot of posts for me in one day but, lots of hillbillies use pvc pipe and jam it right thru Quote Link to comment Share on other sites More sharing options...
RacerJJ Posted June 28, 2006 Author Report Share Posted June 28, 2006 I just bought a piece of 3/8" steel dowell (rebar might work better) and used it and a hammer to bust-up the internal packing and then shake what comes loose out onto the concrete; it took a good hour to do both sides, the driver's side is a PITA but with a little perseverance can be done this way and there is no external sign that you've emptied the cats. A bit barbaric but it got the job done. Remember to use penetrating oil 3-4 days ahead of time on the exhaust flange nuts, then again 24-hrs prior and a third time a few hours prior - you will not have any issue breaking that hardware loose with hand tools. You might also consider new gaskets from the dealer for reassembly ($18 pr). You will also need to do something about the rear O2 sensors, either disable in PCM or use "O2 simulators". Mr. P. <{POST_SNAPBACK}> Do you happen to know the part # on those gaskets? Thanks. Quote Link to comment Share on other sites More sharing options...
misterp Posted June 29, 2006 Report Share Posted June 29, 2006 I took a look but apparently did not save the receipt - sorry Mr. P. Quote Link to comment Share on other sites More sharing options...
RacerJJ Posted June 29, 2006 Author Report Share Posted June 29, 2006 I took a look but apparently did not save the receipt - sorry Mr. P. <{POST_SNAPBACK}> No biggie...Do you happen to remember if they were the round compression type or regular paper/aluminum type? I'm thinking about machining my own aluminum ones because even the dealer can't seem to find them. Thanks. Quote Link to comment Share on other sites More sharing options...
redssinpgh Posted June 29, 2006 Report Share Posted June 29, 2006 I think this is the PN for the gasket #15077362 . It"s a metal ring that compresses when you tighten the bolts down. Make sure you get all of the material out of the cat. I missed a piece on the driver's side and it decided to come loose a month later. I was wondering what the hell was rattling I had to take it all apart a second time. Good luck, Mike Quote Link to comment Share on other sites More sharing options...
mbarnes Posted December 6, 2007 Report Share Posted December 6, 2007 would it better to just go ahead and remove them and weld in a new piece of pipe? i live in a state with no testing. Quote Link to comment Share on other sites More sharing options...
misterp Posted December 7, 2007 Report Share Posted December 7, 2007 would it better to just go ahead and remove them and weld in a new piece of pipe? i live in a state with no testing. Yes certainly, the exhaust flow will be a squeak better, plus you can resell the original cats (their recycling value is $50@). Mr. P. Quote Link to comment Share on other sites More sharing options...
saytagf Posted December 7, 2007 Report Share Posted December 7, 2007 (edited) Can someone please educate me as to the benefit of doing this? I'm not too keen on exhuast mods and don't really know the ups and downs and what effect cats have on performance....What would be the downside of doing this....Thanks Edited December 7, 2007 by saytagf (see edit history) Quote Link to comment Share on other sites More sharing options...
Fast2500Ak Posted December 7, 2007 Report Share Posted December 7, 2007 (edited) No cats = less restriction Cats = more restriction + they can collapse and do damage to the engine it they fail Edited December 7, 2007 by Fast2500Ak (see edit history) Quote Link to comment Share on other sites More sharing options...
saytagf Posted December 7, 2007 Report Share Posted December 7, 2007 No cats = less restriction Cats = more restriction + they can collapse and do damage to the engine it they fail So by gutting them using the mention method They CAN"T do damage to the engine?? Is there any other mods that are contingent or required by me gutting the cats....I.E Mr.P mentioned something about o2 sensors? Quote Link to comment Share on other sites More sharing options...
ss silverado24 Posted December 7, 2007 Report Share Posted December 7, 2007 I also am thinking about deleting my cats. And I think what Mr. P was talking about was an o2 simulator or mil elimintor some call it. Now I think I found one on the internet & I want to make sure it is the right one. Its called a Universal o2 simultor duel output. Is this right. If it is wrong does anyone know where to get the right one. Thanks Chad Quote Link to comment Share on other sites More sharing options...
Fast2500Ak Posted December 7, 2007 Report Share Posted December 7, 2007 Yeah, the rear o2 will get unhappy without the cats and throw a code. I belive that an o2 sensor measures resisntace, so I'd image that a resistor could be used in place of it. Quote Link to comment Share on other sites More sharing options...
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