blissman20 Posted August 14, 2018 Report Share Posted August 14, 2018 Has anyone gutted their catalytic converter here? Quote Link to comment Share on other sites More sharing options...
jkeaton Posted August 14, 2018 Report Share Posted August 14, 2018 No. Why would you? philly1984 1 Quote Link to comment Share on other sites More sharing options...
blissman20 Posted August 14, 2018 Author Report Share Posted August 14, 2018 2 hours ago, jkeaton said: No. Why would you? Deeper exhaust tone, more exhaust flow. Very common up in northern Saskatchewan. It’s fairly easy if you know how to weld. Quote Link to comment Share on other sites More sharing options...
jkeaton Posted August 14, 2018 Report Share Posted August 14, 2018 (edited) Today's cat's are high flow enough not to restrict exhaust flow. Back in the early days of catalytic converters, yes it could free up the exhaust by doing that. Not beneficial on todays cars, plus you will throw a check engine light for cat efficiency. There are better ways to get the tone you want. Down here it is a federal offense to alter factory installed emissions equipment and you will fail inspections. Maybe different in Canada. Edited August 14, 2018 by jkeaton Quote Link to comment Share on other sites More sharing options...
blissman20 Posted August 15, 2018 Author Report Share Posted August 15, 2018 7 hours ago, jkeaton said: Today's cat's are high flow enough not to restrict exhaust flow. Back in the early days of catalytic converters, yes it could free up the exhaust by doing that. Not beneficial on todays cars, plus you will throw a check engine light for cat efficiency. There are better ways to get the tone you want. Down here it is a federal offense to alter factory installed emissions equipment and you will fail inspections. Maybe different in Canada. It is 100% different in Canada, still a popular modification on today’s cars. Just wondering if anyone has done it on a journey so it won’t through a code Quote Link to comment Share on other sites More sharing options...
2late4u Posted August 15, 2018 Report Share Posted August 15, 2018 do it,do it Quote Link to comment Share on other sites More sharing options...
jkeaton Posted August 15, 2018 Report Share Posted August 15, 2018 8 hours ago, blissman20 said: It is 100% different in Canada, still a popular modification on today’s cars. Just wondering if anyone has done it on a journey so it won’t through a code You will need an adapter to get the sensor out of the exhaust stream to avoid a CEL. Good luck! Quote Link to comment Share on other sites More sharing options...
blissman20 Posted August 15, 2018 Author Report Share Posted August 15, 2018 Well I’ve been doing lots of reading and think I found it lol, spark plug non-foulers... apparently you drill one out with 1/2 bit, screw your sensor into it, then screw that one into a non modified one, then into the gutted cat, it restricts exhaust flow into the sensor and makes it think the cat is still there working... or at least it works on Rams, chargers and challengers... so I guess I’m going shopping next time I’m in the big city Quote Link to comment Share on other sites More sharing options...
jkeaton Posted August 16, 2018 Report Share Posted August 16, 2018 Just remember that you won't see any significant performance increase from doing this and what you are actual creating is another resonator by "gutting" the cat. You may hear some sound improvement, but the majority of sound dampening in the exhaust is from the muffler and existing resonators. Plus your vehicle will stink bad, real bad. Good luck and post your results after you finish. OhareFred and 2late4u 1 1 Quote Link to comment Share on other sites More sharing options...
Roderick Posted August 24, 2020 Report Share Posted August 24, 2020 I did but I bought new cats first and gutted them got the spark plug non foulers. No codes and it doesn’t smell all that bad car sounds better. It’s a 2009 journey R/T. I don’t regret doing it I burn less gas and it has added a bit more horse specially top end. And so you know my model journey and the original cats were almost square. And they have 2 sections of filter in the original cats they are extremely restrictive Quote Link to comment Share on other sites More sharing options...
JeremyJ Posted August 24, 2020 Report Share Posted August 24, 2020 I think some of your gain is just from the improved runner design. They look like mini headers. I do believe even modern cats do clog up the flow a little. Not as much as they used to, but better flow will be had without them. Roderick 1 Quote Link to comment Share on other sites More sharing options...
Roderick Posted August 24, 2020 Report Share Posted August 24, 2020 3 hours ago, JeremyJ said: I think some of your gain is just from the improved runner design. They look like mini headers. I do believe even modern cats do clog up the flow a little. Not as much as they used to, but better flow will be had without them. 3 hours ago, JeremyJ said: I think some of your gain is just from the improved runner design. They look like mini headers. I do believe even modern cats do clog up the flow a little. Not as much as they used to, but better flow will be had without them. IMG_2497.mov Quote Link to comment Share on other sites More sharing options...
JeremyJ Posted August 24, 2020 Report Share Posted August 24, 2020 Is that with stock mufflers? It sounds pretty ballsy. Quote Link to comment Share on other sites More sharing options...
Roderick Posted August 25, 2020 Report Share Posted August 25, 2020 Yes that’s stock mufflers. I am removing the resonator soon add a little more rumble to the family mover. Quote Link to comment Share on other sites More sharing options...
Roderick Posted August 30, 2020 Report Share Posted August 30, 2020 On 8/24/2020 at 4:37 PM, JeremyJ said: Is that with stock mufflers? It sounds pretty ballsy. Resonator delete and empty cats IMG_2545.MOV Quote Link to comment Share on other sites More sharing options...
andavaka Posted November 16, 2023 Report Share Posted November 16, 2023 Hey There, I recently got my cats emptied out, how did you sort out the check engine light. Quote Link to comment Share on other sites More sharing options...
jkeaton Posted November 16, 2023 Report Share Posted November 16, 2023 6 hours ago, andavaka said: Hey There, I recently got my cats emptied out, how did you sort out the check engine light. Quote Link to comment Share on other sites More sharing options...
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