Originally Posted by Flinchy
I agree with bob.... The M3 will always receive the most aftermarket attention in the entire BMW product line. Not only because it's the M3, but because that's where the money is. The M3 owners have never had a problem dropping big money on mods -- $2k for an X-Pipe, $10-15k for a supercharger kit (not even installed), etc.
The N54 won't be forgotten since it has a very low entry point and is a more explored platform, but I certainly expect the S55 to go through a much faster aftermarket growth. "