AMG893

Hmm. I am very interested in hearing the results.

I am currently running LTH + 100C High Flow Cats. Then EVERYTHING else is stock (2nd cats/Res/Mufflers)

Car sounds very similar to just 2nd Cat Delete (with factory everything else)

AMGonFire

What brand headers? And how were you able to keep your secondary cats as well

avery.whss

ive been telling people this for ages, and that fully de-catted is probably louder then a LTH c63


AMGonFire - you don't need to get rid of your 2nd cats but a lot of guys do or replace it with a different pipe/race cats from what i understand

AMGonFire

Longtube headers usually require a mid pipe and if he had primary 100 cell cats those are usually in the mid pipe so was wonder how he was able to have both 100 cell and secondary not sure of what brand you can do that with?

AMG893

https://mbworld.org/forums/c63-amg-w...ust-sound.html

https://mbworld.org/forums/c63-amg-w...rs-fitted.html

AMGonFire

Nice yeah saw I was replying to those threads lol guess I didn't remember how are those xforce headers holding up? No leaks or cracks?

AMG893

Nothing to report thus far. They are fine. People always gonna hate.