it all depends on how fast you want to go. some people spend 60 dollars on forged lug nuts and 100 dollars on aluminum ac brackets. now, will the 160 dollars spent on lighter lug nuts and an aluminum ac bracket really improve performance that much?

if you can sacrifice daily driveability and comfort for speed then go without your ac. however, i doubt you would be able to notice the difference and silver eg's car is pretty quick...so its not like you'll have a lot of trouble keeping up.