Originally Posted by Army335xi
Dual Cat in 1 Canister? So if a Catless DP is made, you truly are Cat-less...
I was able to access my N55 manual online. Here is a pic right out of the manual to get a better idea. Also I attached pics of my stock exhaust, you can see the 2 resonators as well.
This is what I mean about the 2 cats in 1 canister. Ceramic structure 1 has 600 cells and Ceramic structure 2 has 400 cells
Here is my stock stuff after the downpipe.