It's cleaner
Seriously, it's brighter, more Silver, less Grey.
Although of course my M900 engine is still wearing it's original 1997 paint, so it could have changed colour over the years, especially if it's been overheated at all.
The SS is going to be far from standard, and the engine mostly covered with a fairing, so as long as it looks clean and tidy I'm not worried if it's not the correct shade of Silver.
Nasher.