I got the m54 version. I ordered from grip motorsports. But looks like this place has
it. http://www.hopupracing.com/hksspexbmwm3.html
Oh where at? I wanted a white zhp..
Funny I think the HKS exhaust is too quiet for me! It's louder than the stock zhp exhaust but it doesn't drone at freeway speeds. It definitely screams performance package. It's a compromise of full on performance and the practicality of daily driving. After a long track day at Laguna Seca, the burnt edge tips turned full purple. It looked really stupid so I painted the muffler flat black for a more discreet zhp look.
I'll get interior pics when I get to my computer.