leprof93

Friends,
It's probably been discussed multiple times here but I am looking for some advice on a muffler upgrade for my 2015 E550 Cabrio (A207).
I have contacted GTHaus: https://gthaus.com/product/mercedes-...8-models-2010/
RennTech: https://www.renntechmercedes.com/ind...07-e550-detail
ECS Tuning: https://www.ecstuning.com/Cart/?add1...esrep=njohnson
Forzaa: https://forzaaa.com/collections/merc...207-e350-3-5na
but cannot decide... any recommendations? Valved or not valved is optional.
Thanks!

e55amg00

I deleted all resonators, bullet mufflers, added x pipe and used 2017 c63amg mufflers w/o performance exhaust. What a major improvement. Also have OE tune with pops and bangs..Adds to the excitement....I couldn't be happier.

leprof93

Thanks - I see a few C63 AMG and C63S AMG mufflers for sale on ebay. Do you know what part # you ended up with for a perfect fit? did you go valve or unvalved?
Here are a couple I am watching:
C63S: https://www.ebay.com/itm/256502641696
C63: https://www.ebay.com/itm/266708479155
Also, you mentioned an OE tune? What does that involve?
Thanks for your help.
Cyrille