Gutted E550 M278 mufflers
04-09-2020, 05:00 PM
#27
Junior Member
Thread Starter
Honestly, it was just to see how different the acoustics would sound as some vehicles with gutted mufflers give a more throaty sound. Not the case with the E550. The money and work was of no concern, so I didn't mind paying to have it done as an experiment. Each modification done gave a unique sound, which was I wanted to do to help others, and give them more options.
04-13-2020, 08:49 AM
#28
Newbie
Honestly, it was just to see how different the acoustics would sound as some vehicles with gutted mufflers give a more throaty sound. Not the case with the E550. The money and work was of no concern, so I didn't mind paying to have it done as an experiment. Each modification done gave a unique sound, which was I wanted to do to help others, and give them more options.
04-14-2020, 06:50 PM
#29
Junior Member
Thread Starter
I replaced the resonators with an X pipe, then straight pipe back. The shop did some bends to clear the brace, so any skilled shop should be able to do what you’re asking.
04-14-2020, 07:14 PM
#30
Newbie
10-25-2020, 04:33 PM
#31
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W212 E550 4matic
So just had my 200 Cell high flow cats installed and they cut the old down pipes down to almost the flange and rewelded pipe on for $120 per bank. Not bad. Might eventually clean it up with stainless once I decide on what I want. Definitely more drone, but not bad with the windows up. Loss of low end, but may put an x-pipe in later this week to balance out the exhaust gases.
Great write up and super helpful ! By any chance do you remember the diameter of magnaflow 200 cell cats? 2.5" or 3"?
03-31-2024, 08:59 AM
#32
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2011 Mercedes E550 coupe
When you did a cat delete did you have a tune? I have a 2014 E550 and I wanna gut the cats but don’t know if it will cause the car to run funny or throw a check engine light??
