M56 Headers

[DFW2011M56S]

So my drivers side cat is going out on my M56. I shut the DTCs off in my tune and plan to gut the primary cats soon before it disentigrates and gets sucked into the engine. Has anyone here run across long tubes for our cars yet. I emailed ARH knowing they build 1 3/4" and 1 7/8" primary long tube headers for our engine in a QX56/Patrol/Armada but they declined to even return my email. Kinda weird because it seems like more people would be interested in headers on their sports sedan than a big heavy SUV anyway.

[Ilya]

Isn't it a pain to do this job? You have to basically remove the motor or something crazy to get to the cats? I'm dreading the bill when this comes up on mine...I'm at 93kmi. How much on your car?

[DFW2011M56S]

Isn't it a pain to do this job? You have to basically remove the motor or something crazy to get to the cats? I'm dreading the bill when this comes up on mine...I'm at 93kmi. How much on your car?

Just shy of 96K

[armybrat]

So my drivers side cat is going out on my M56. I shut the DTCs off in my tune and plan to gut the primary cats soon before it disentigrates and gets sucked into the engine. Has anyone here run across long tubes for our cars yet. I emailed ARH knowing they build 1 3/4" and 1 7/8" primary long tube headers for our engine in a QX56/Patrol/Armada but they declined to even return my email. Kinda weird because it seems like more people would be interested in headers on their sports sedan than a big heavy SUV anyway.

titan-vk56de-swap-in-progress-06-infini ... 14391.html

Not sure about the M56 but he's using Titan long tubes in his M45 VK56 swap.