Anybody ever try to hollow BMW cats

[bjl4776]

So I got a junk OBD-II cat section for free from the dealership. Since im not worried about emissions i was just going to take the cats out. The honeycomb the use is impossible to get out. It took a air chisel and a 50 ton hydraulic press to get the honeycomb out. There is also two sections of honeycombe in each cat. So it was a totall of four elements you have to get out. Big pain in the ass but cheaper than anything else i could do for an exhaust, plus the obdII would make it true duals to the back.

[Kalevera]

Not worried about emissions?

Then why not install straight pipes in the first place?

best, whit

[bjl4776]

Because im putting a standalone and I can retard the timing to make my car pass emissions with the push of a button. I didnt just put straight pipes in because this was cheaper, it just was a PITA. I work at Honda and it is dead on saturday after noon, so I got paid to spend a couple of hours doin it.