Good on ya Skap - stirrer 
I have to admit, I am guilty of this - in 'a former life' - as evidenced by;

Yet I'll call it a performance enhancement - ridding the grille of that dinner plate sized Holden badge and replacing with a Chev bow-tie opened up more airflow for the OTR... 
Well that is my story in any case... 
And surely the Chevrolet rocker covers offered a few more ponies as well... 

Having said that including poking fun at myself for doing this, I am not sure why folks get their noses so out of joint about this - it's just a badge and it isn't even on your car, and so really why do 'we' care so much - sounds like a 'first-world' problem to me. 
In any case, the below photo taken from some posts above isn't so sad as some would suggest: The sticker is for Chev's Performance Centre in Carrum Downs VIC and not related to Chevrolet.
The owner's name is Gary Cheverly whose nic-name is 'Chev' hence the apostrophe - it is his performance centre and not a performance centre for Chevrolets.
Great bloke and very handy on the spanners - built my VE to 333rwkw (NA), and more recently built the 308 in my hatchback - yes he does a lot of LS engined cars but he loves the 'old school' stuff as he terms it and his garage always depicts an eclectic mix of marques.
http://chevsperformance.com.au/

Cheers, TB
Edited by Tyre biter, 23 July 2014 - 10:11 AM.