heads up 200cell flowmaster cats are junk
Thread Starter
MBWorld Fanatic!
Joined: Nov 2004
Posts: 6,697
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2005 E55
heads up 200cell flowmaster cats are junk
I just spent 600 doing my custom mid section and welding in these cats before the rear o2 sensor in the same spot as the oem primaries and one of the cats already failed.
So pissed right now. It sounds like metal chunks bouncing inside it.
Car sounded amazing for about 2 days lol
So pissed right now. It sounds like metal chunks bouncing inside it.
Car sounded amazing for about 2 days lol
Last edited by skratch77; Apr 26, 2020 at 10:46 AM.
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Joined: Oct 2017
Posts: 176
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'10 C63 P30
Bummer. Obviously doesn't help with labor cost but if you have the chance to swap, may consider some Magnaflows. Haven't put a ton of time on mine but, FWIW, replaced all 4 cats with 200 cell Magnaflow and sound/work great so far - I recall whatever 'legit' reviews I could find favoring them as one of the better/best 'affordable' hi-flow cat options. If you decide to use, would highly recommend getting from an authorized dealer - this seems to be an item that is heavily copied/cloned especially on ebay.
Thread Starter
MBWorld Fanatic!
Joined: Nov 2004
Posts: 6,697
Likes: 381
2005 E55
I didnt even get 50 miles on one of them and you can see me in the video i posted on my guess my exhaust setup. That was me taking the car home from the shop and not even an hour later they broke.
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2007 Mercedes E63 AMG
Magnaflow is the industry standard and industry supplier for 200 cell cats. Have a 3 inch 200 cell on my Audi and has been problem free for years.
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Junior Member
Joined: Feb 2018
Posts: 30
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From: Chicago
2012 C63 Edition 1 Coupe
I got these https://www.mbhmotorsports.com/produ...high-flow-cats from MBH and had them welded on my midpipes after my MBH headers end. Was able to pass emissions test here in Illinois with them and they're holding up after a year now.
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Joined: Jul 2016
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From: Colorado, USA
E55 C63
Go with Magnaflow, we sell magnaflow as 200cell, and G sport as 300cell , https://www.vrpspeed.com/product/hig...ic-converters/
Thread Starter
MBWorld Fanatic!
Joined: Nov 2004
Posts: 6,697
Likes: 381
2005 E55
Go with Magnaflow, we sell magnaflow as 200cell, and G sport as 300cell , https://www.vrpspeed.com/product/hig...ic-converters/
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Joined: Sep 2014
Posts: 3,647
Likes: 818
From: Worldwide
2007 Mercedes E63 AMG
SPONSOR
Joined: Sep 2014
Posts: 3,647
Likes: 818
From: Worldwide
2007 Mercedes E63 AMG
psh...300 cell...do you even care about the environment at all.
