Jeep CJ7 Exhaust install - 258 with catalytic converter 

I'm in California I need a special one. Dude thanks for these videos it motivates me. You do great work. I wish I could do off frame restoration. I'm wiging it fixing what I can

Appreciate everything that you are posting on these CJs. I have a CJ8 sitting in one of my metal buildings, and a J10 in another building so I am following all the Jeep builds on you tube.

I'm working on my 1983 CJ7 258 Inline 6 and I need to replace my exhaust pipes they are all rusted. Thanks for the helpful video!

Cool Guy, thanks for all your help with CJ7 restoration. I have a 1979 NT that I'm working on now. Question on your video. If I have headers and need to run dual pipes, would I just replicate the exact setup in your video on both sides or would there be a more appropriate way to go about this? Thanks for all your video's, excellent work and always enjoyable to learn from.

I’m not a big fan of flex pipe and never was but if you got the weld to stick without destroying it , good job 👍. I too believe an exhaust should be welded at its joints rather than rely on clamps to reduce leaks . The build is looking sweet . I eliminated the catalytic converter on my 1980 cj5 for one reason , I just didn’t want the excessive heat so close to the floor . Yes , there should be a heat shield ( zinc ) attached to the floor and the converter itself has a zinc shield on top but they still get very hot and I didn’t want the heat fatigue to contribute to the floor rusting due to fatigue . This is subject to speculation but we all know catalytic converters get hot . If that makes me an enviormental commie , well , I’m concerned for the preservation of my Jeep . My Jeep had no zinc shield and no brackets attached to the underside of the floor . I wasn’t interested in fabricating any at the moment . I needed it on the road before the first snow hit . It’s a luxury craft , not a daily driver but I’ll respect that it really should have a catalytic converter . Alright , next exhaust job I’ll get one on it . If I get nailed on an inspection , you know I’ll get on it . By the way , I wish the muffler straps were durable enough to last to make that hook into the chassis mount . I’m sure for as long as the muffler lasts , the bracket you welded on will too . That certainly a lot cheaper than wasting money on a bracket that won’t last as long as the muffler .

It’s Looking good ! Will the shocks being flipped around affect the performance or life of the shocks any? I’d wonder if they could get some water or sand or grime to settle inside them? I’m probably just over thinking ,I probably still got original shocks on my Cj5,I can tell it everytime I hit chug holes lol

Cool Guy, big fan of your videos, have learned a lot as a new auto enthusiast. Recently bought an 81 258 CJ7 and looking to add a catalytic converter to reduce exhaust smell. Its possible it had one and the PO removed it, not sure. My question is where best to install one? I feel like I have seen pictures where they are installed above the skid plate, but doesnt look like enough room there. Regardless, you mentioned putting yours behind the skid plate to allow more heat dissipation. I am replacing my muffler as well, and putting the CC behind the skid plate, would require me to push the muffler back some which I can do with some additional effort I think, but wanted to confirm the thought there. And in front of the skid plate too hot for the drivers feet I'm guessing? Thanks!!!!

Been loving all the videos. I recently got a 83 CJ7 and it needs some serious tlc. What mig welder do you recommend? I'm just a beginner if that matters

Hello Cool Guy. All your videos are excellent... I've been watching for a while and they are very informative. I'm restoring my 1978 CJ7 Renegade Levi's Model. Currently working on my exhaust system. The pipe you talk about in this video that you described as a "bridge pipe" between the back side of the catalytic converter and the front-inlet side of the muffler... can you provide additional details about that pipe? What is the outside diameter? Where is a good source to find it? Did you have to modify it in any way for a tight fit? It looks like it fit on the inside perfectly. What you did there is exactly what I would like to do with mine. Any help you might offer with details on that pipe would be appreciated. Thanks in advance.

Going the other way... could I delete my cat on a 84 CJ7 and install a piece of pipe with clamps or do I have to weld it in place (which I can't do). I don't have to pass emmissions any more.

I have a 73 Commando with same engine, do you think you're configuration for exhaust will work?

the muffler is upside down, if you flip it over the offset would be on passenger side giving clearance around shock and dont need flex pipe,im doing the same type of resto on my 83 cj 7 laredo

Hey Cool guy, that tail pipe is suppose to exit straight out the back of the CJ not the side, I have it on my CJ. I also believe the offset on you muffler is not correct.

Its called a Doughnut Gasket