Hey all, I recently came into ownership of an 07 E63 and am loving everything about it, but it lacks in the noise department. I've searched forums and have found little valuable info. This week I had the resonator removed and replaced with an x-pipe. It makes noise a great noise above 3K but I'm looking for more noise. Has anyone done a muffler delete with an x-pipe? Any issues with back pressure? Will I need a tune in order to maintain engine harmony? Thanks in advance.

 

delete cats

 

Quick question, when you delete the cats does this not throw a CEL like other cars?

 

primary for sure will get cel. secondary should be ok.

 

Ah, ok what I figured. I live in a emissions county and as far as I know they dont make MIL eliminators for mercedes?

 

not sure about your emissions man ... don't live in the states ...




a tune will cancel the cel.

 

secondary cat delete and removal of resonators will add mucho noise. or just add some long tube headers and remove resonators.