First off I'm 65. Now what the hell does that have to do with exhaust. Well, I'm going blind reading all of the out of date exhaust threads. So I have searched. lol

Now, I thought I might change out the mufflers or just put in straights with a H after the secondary cats just for a deeper tone. I read where someone had used glass packs but I can't find what manufacture. Any one have a Magnaflow part number? Kleemann advised that nothing outside of what had already been done-Headers, Hi Flow Cats, 93 tune could be done outside a blower. Any other exhaust changes wouldn't help performance. Should I just leave it?

I don't know if I can get away with taking the secondary cats out. Though when they look during inspection I don't really think they know what they're looking for.

There was a thread here somewhere here that showed "fake" secondary cats. They basically have a hollowed-out cat shell. You can use that in conjunction with MikeGPro's straight pipe if you want the noise, a little HP, and pass your state's visual test.

Also, there was another recent thread someone replaced the mufflers with Magnaflows for a real "American" V8 sound.

Ergon, I would remove the secondary cats with straight or an X pipe, OR

http://marylandspeed.com/dmh-low-pro...ut-p-1313.html

Done!!!! this is all that you need here

"Application of course may vary" but these are cheap and they are on and off with the push of a button at almost 1/10th of the cost.

Do you have a link for the "MikeGPro's" straight pipe? Did a search and it came back to this thread.........

Here it is:
https://mbworld.org/forums/c63-amg-w...thread-12.html

Mike will take care of you - he is a stand-up guy

I just PM'ed him to find out what he can do for me. It's a nice clean setup.