eimkeith
Supporting Vendor
I'd like to see pictures as well - I'm in the planning stages (BL ordered, just for this reason)
Another over the frame exhaust thread (1 Viewer)
- Thread starter Noahrob
- Start date
- Watchers 15
I'd like to see pictures as well - I'm in the planning stages (BL ordered, just for this reason)
- Thread starter
- #22
Ok, I ordered a bunch of tubing, vbands, flanges, and a few different mufflers to see if I get this to work. I'll try to keep both CATS and route the exhaust through that little channel where the rear heater hoses are. I also got exhaust wrap to try keep the heat bareable
Ok, I took a few pics this morning for you.
I used to have a couple shots when I first did it, before the sliders went on, demonstrating the improvement over stock, but they are lost on adead computer. The difference now is that everything is above the bottom of the frame rail.
The cats are rotated.
Exhaust angles up after the O2 sensor to get above the bottom of the frame.
Some generic 50 series muffler...
Couple more of the rear.
Over the rear frame.
Out through a hole in the 4x4Labs wing.
Over the rear frame.
Out through a hole in the 4x4Labs wing.
eimkeith
Supporting Vendor
thanks!
93-94 dude.. included equipment.
- Thread starter
- #28
So helpful, thanks
Whoa...totally different perspective there. I should've started my search for a landcruiser with the exhaust. "No lockers? Ok but the exhaust is inside the frame rail right?...ah-huh...ah-huh...ok I'll take it!"
Yes, choosing a Landcruiser is a complicated matter. Arguably, obd2 is the only reason to buy a 95-97 and that’s not what a Landcruiser is about.Whoa...totally different perspective there. I should've started my search for a landcruiser with the exhaust. "No lockers? Ok but the exhaust is inside the frame rail right?...ah-huh...ah-huh...ok I'll take it!"
You are welcome....So helpful, thanks
The best Land Cruiser you can own is the one you have. 
Cheers.
Cheers.
The way some rock sliders are braced, IMHO are just as much of a issue sliding over rocks as the exhaust running under the frame. 
Oh I agree about the decision not being as easy as it seems. That's why I was making the joke about prioritizing exhaust routing.
- Thread starter
- #36
Ok, well, I broke the millermatic and finally got the new liner and rollers for the Lincoln and got back to work. Was all fired up and got everything through the muffler mocked up, cut the hole for the O2 sensor, welded everything up and...
- Thread starter
- #37
The bend won't fit over the frame because the studs in the O2 sensor mount are too long...hahaha, I literally laughed out loud when I realized it. I'll see how I feel tomorrow but I might just cut the studs off and weld it together...
Last edited:
Ironically, I'm in the middle of attempting something similar with a 3 inch exhaust. I have been planing it more or less for the majority of COVID because Its technically my daily driver and since I'm not driving it daily, now seemed like a good time to take it apart and try to put it back together.
Because my emissions standards are not real particular about after market cats I'm installing it in line with what is actually a huge resonator in place of a muffler. not sure that set-up is going to cut it (I like a rumble but can't stand clacking) so I added a v-band clamp between the cat and resonator in case I want to go with a more traditional muffler. that said, after putting it all together I doubt there is enough room to do a simple swap. I think the hardest part of this to date has been getting the middle hanger right. Fitting a 3 inch pipe over the frame requires NO play and ridged well placed well ballanced hangers.. In fact I think I'm going to add one more for safe measure. I was thinking about doing a full post with everything I used once its all done.
I want to add an additional consideration regarding heat... with the cat being so far down stream, I had the headers and down pipe coated with the goal of reducing engine compartment heat and pushing it further down, I will also wrap the small section over the frame for the same reasons, lastly I fabricated some added heat shielding for the transfer case.
View attachment 2505543View attachment 2505545View attachment 2505546
Who's your plumber? I haven't seen piping that pretty since my last brewery tour.
- Thread starter
- #39
Ok, done. I let the studs on the O2 sensor soak in PB blaster overnight and then heated them up with a torch and was able to get them out which made room to tap the holes and use bolts...from there, I still had to cut my slider support to get the darn thing in but was able to wrap it and get everything sorted out. I couldn't remember how the exhaust exited so went down the middle of the truck and left it short...might route it to the side, but for now it's all good. The only issue is one rattle at the front...
