[stylinexpat]

Originally Posted by PencilGeek

Check the Dyno Database. Here's the entries for ESS+Akra:
http://bmw.pencilgeek.org/showDyno.html?recID=166

Thanks Looks like the tune with the ESS kit/Akrapovic exhaust does run quite well and the dip is smoothened out from 2700-3100. It is there but barely even noticeable with ESS Supercharger on there. In a previous dyno I had seen with just the Akrapovic exhaust along with an ESS tune still had a dip and it seemed bigger than the one in this graph.

Am now considering the Akrapovic Exhaust with the ESS kit