SL55/63/65/R230 AMG: Electric exhaust cutouts on my SL600
06-30-2016, 07:34 PM
#27
Nope. It's fine with just a muffler delete. I have downpipes with 200 cell cats and no mufflers and the car is louder, but your setup will still be relatively quiet.
06-30-2016, 11:56 PM
#28
Senior Member
Thanks, just want to make sure there is no drone at highway speeds. Still on the fence of doing this our the electric cutouts.
