E550 4Matic H or X? (Not what you think..)
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Joined: Jan 2020
Posts: 164
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2012 E550 4matic
Thread Starter
Member
Joined: Jan 2020
Posts: 164
Likes: 21
2012 E550 4matic
You have a completely different engine. And also I'm sure most would recommend X pipe just because it's more common. The guy at my shop thought I told him x pipe...had to tell him 3 times... H PIPE. You just don't hear it that often with our kinda cars. But, for the sound wanted and the Twin Turbos, H pipe was best for me. I actually hear straight pipe with maybe x pipe is better with NA
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Joined: Aug 2020
Posts: 206
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2011 Mercedes-Benz E550 4Matic
You have a completely different engine. And also I'm sure most would recommend X pipe just because it's more common. The guy at my shop thought I told him x pipe...had to tell him 3 times... H PIPE. You just don't hear it that often with our kinda cars. But, for the sound wanted and the Twin Turbos, H pipe was best for me. I actually hear straight pipe with maybe x pipe is better with NA
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Joined: Feb 2019
Posts: 681
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From: FL
2012 E550 sedan 2019 E63 Wagon
Where are these legendary secondary cats at? My car only came from the factory with one per bank. I have been robbed!! Class action suit.
Edit: this is mine straight piped no h or x. Still has the stock cats (one per bank). Cold start: https://www.tiktok.com/@megaman2020x...from_webapp=v2
Edit: this is mine straight piped no h or x. Still has the stock cats (one per bank). Cold start: https://www.tiktok.com/@megaman2020x...from_webapp=v2
Last edited by S. Madman; Feb 13, 2021 at 07:47 PM.
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Joined: Apr 2018
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From: Connecticut
2013 E550 Sedan, 2005 E500 4matic Wagon
backpressure matters not on a turbocharged vehicle...as far as performance is concerned.
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Joined: Dec 2005
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From: SoCal. Desert
'16 E350, gone: '03 c230k
If you have downstream O2 sensors (i.e. after the CAT's) as well as upstream CAT's then you will definitely throw codes.
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From: 122W, 37N
2016 E350 4Matic wagon, 2019 Ford Expedition, 2019 Chevy Bolt EV
pretty much all cars since hte mid 2000s have downstream O2 sensors. one before the cat to monitor the raw exhaust gases for optimal free oxygen content, and one after the cat to monitor that the cat is working properly.
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2013 SL550 BiTurbo
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'16 E350, gone: '03 c230k
