W211 AMG Discuss the W211 AMG's such as the E55 and the E63

Catalytic Converter Bypass

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Old Jul 1, 2019 | 12:18 AM
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2004 E55 and 2018 Challenger SRT scatpack
Catalytic Converter Bypass

Hi, anyone here has Bypassed the Cat Converters? Can it be done? Thank you
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Old Jul 2, 2019 | 04:06 AM
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Cut them out...
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Old Jul 2, 2019 | 08:09 AM
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NOt good for environment
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Old Jul 2, 2019 | 10:32 PM
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You can use some HVAC ducting that's available at Home Depot or Lowe's to bypass the cats. Works great and isn't too expensive. Grab some and take the car to a muffler shop and they'll set you up. It's not legal, but if you pay cash most places will do it "off the books".
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Old Jul 2, 2019 | 11:07 PM
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Originally Posted by Strigoi
You can use some HVAC ducting that's available at Home Depot or Lowe's to bypass the cats. Works great and isn't too expensive. Grab some and take the car to a muffler shop and they'll set you up. It's not legal, but if you pay cash most places will do it "off the books".
When you sell your E63 please keep posting on the forums
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Old Jul 3, 2019 | 12:38 AM
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2001 E320 Wagon, 2006 LBZ Silverado, 2007 E63 (sold), 2001 E55 (sold)
Originally Posted by tw2
When you sell your E63 please keep posting on the forums
I've given up on selling it so you guys are stuck with me!

I would consider trading for the right C126 560SEC though. Always wanted one and prices are getting to that point...
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Old Jul 3, 2019 | 02:02 PM
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2005 C55 AMG (sold), 2005 E55 AMG
Originally Posted by Strigoi
I would consider trading for the right C126 560SEC though. Always wanted one and prices are getting to that point...
Sorry for going off topic but the SECs are one of the most bad *** Benzes ever made
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Old Jul 3, 2019 | 06:44 PM
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2006 E55, 2006 SL55, 2006 LS7 Ute
Just so you are aware MOST of the silencing is done by the cats. I removed all on my SL55 and left the 4 cans which have no back pressure. It didn't sound great just loud under full throttle so a had a straight through muffler built for the centre section which took the nasty edge off the noise. Happy now.
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