C219 CLS55 and CLS63, 2004-2010

Anyone leave resonators and remove secondary cats

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Old 10-27-2011, 10:59 AM
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2006 CLS55 AMG Sold 2010 E550 Coupe totaled '13 SL550 current and loving it!
Anyone leave resonators and remove secondary cats

Is there any impact on sound or sound quality doing it this way instead of removing resonators and leaving cats? This would be for an '06 CLS55.
Old 12-31-2018, 07:36 AM
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CLS55
Removing the cat's will make it louder, IMO it will be louder than removing resonator because resonator doesn't do much according to others. Removing cats should also net you 12whp You might need to get them turned off it a CEL comes up.

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