kj217

anything i can do to make my 07 CLS63 sounds like late 63 AMG models?

Manofsteelpt

You mean the turbo whine?

kj217

no,, exhaust note,,

val69

Remove the cats

kj217

cats or middle resonators?
cats won't throw CEL if removed?

val69

I would like to know that also. (CEL)

AMGAffalterbach

I would improve the exhaust note rather than trying to make it sound like the newer ones, seriously the M156 is one of the best sounding engines ever I have no idea why you would want to try to change its character. If the setup is the same on the W211, a resonator delete will give it a deeper tone and a crackle when you let off at high RPM. Won't be too much louder but seems to be a common AMG mod. You could also do a muffler delete with a j-pipe which is what I did, very docile at idle but absolutely screams at WOT, sounds very good I've been told. You could also just get an aftermarket exhaust but that's pretty expensive. Or maybe get a hold of some C63 AMG mufflers, those things sound like thunder.

Removing the primary cat will trip a CEL error, but the rest of the exhaust system doesn't have sensors. Since it's a naturally aspirated engine if you're going to remove or straight pipe anything I would make sure it's as far back in the exhaust system as possible to make sure you still get the benefits from scavenging.