Has anybody ever heard of Gforce Performance Chip or have the chip installed on their 355? http://www.gforcechips.com/ferrarif355modena.aspx
It's a $0.20 resistor that alters the value sent from one of your engine temperature sensors to fool the computer into providing a different fuel-air mix. Personally, I'd stay far away from it, but to each his/her own.
Let's come up with a $0.40 resistor that prevents valve guide wear-out, and a special $1.99 capacitor that eliminates belt changes...