Bypass dual stage system


New member
Mar 11, 2019
So I just installed the Amsoil dual stage bypass system on my 2019 l5p. The mount from Mad Jack Diesel made it really clean and tucked up nicely in the frame. It’s only been on for a few hundred, maybe 500 miles and the oil is still golden brown. I still intend to change every 10k at least until I can gets some parts to fall off. Once the EGR is gone I might let it go longer, but for now it’s just peace of mind for me to have that extra filtration. Big thanks to Dane at Mad Jack Diesel for the mounting bracket and help with sorting out the install. Not all L5p are plumbed the same. My fuel lines were in the way, but I managed to shift the bracket enough to achieve enough clearance.

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