I paid $340 for it on my M3 and it was done by RE themselves in NJ. Also paid $40 more for stiffer tranny mounts. If you have never experienced it, it is incredible. No matter what you pay, you will love it. Took Ben about an hour but remember that he invented it.OnMDMA said:WHeel Power just quoted me $325 to install the RE Octane SSk. That seems way to freakin' high!! Anyone have know of a better place in the LA area that would do it cheaper??