Anyone leave resonators and remove secondary cats
#1
Senior Member
Thread Starter
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.
#2
Super Member
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.