1994 K3500 extended cab dually

[n8in8or]

Nice work! the only thing I would be worried about for the future is the flex joints. when the day comes they start leaking and you need to replace. iirc they make them with v band flanges so that they could easily be replaced, wonder if you have clearance for that though.

Though on my 95 I just about had no choice to cut my down pipe and splice in a 4" steel flex pipe to alleviate the stress and from it banging the frame to the 4" exhaust kit I installed. It's been on there for a while now, all rusted but still holding up LOL. your stainless should last for years to come!

As long as I make my cuts straight, it won’t be bad to replace them in the future if the need ever comes.

 

[n8in8or]

It took 2 days, but I finally have the post-turbo exhaust done (mostly).

I installed an FTE Diesel muffler/resonator on it again because the sound was great and I had zero drone in the cab. It’s 409 stainless.



All tubing is 304 stainless. I started TIG welding all the joints. Oof. That took so long and I wasn’t happy with the results - not only did my beads look like crap, but I’m also not set up to backfill the tubes with argon, so I wasn’t getting great corrosion resistance anyway…..so I ended up welding all the joints with carbon steel MIG and was much happier with the results. The downpipe starts 3” and transitions to 4” before the flex joint. I left the end of the exhaust unfinished so I can make the tip align with the bed how I want and not have to rework it after the bed is installed…..I learned that lesson on the red truck.