CES is an acronym
More Commonily it stands for "Custom Exhaust System"
but as Stoopid head has pointed out it is also an abbreviation for "Custom Exhaust Specialists" an exhaust shop up here in Brissy that has produced a catback bolt-on exhaust for the sportivo, which several of the members have.
Personally I dont see the problem with fellow forum member's stating they have a "CES" because the fact is they do and so do I, a "Custom Exhaust System" now if they had been saying "I have a "Custom Exhaust Specialists" system on my car" when they didnt then sure have a go at them.... But the fact is the acronym "CES" could stand for anything almost....
my 2c
Honestly though, how many people use CES to just describe their exhaust as a custom exhaust, rather than a CES product?
Not many I know of. Most common thing I have heard is "i have a sports system" LOL......