I had a call from a 7 owner last week who fitted one of my kits, he could not believe that his oil temp was at optimum temp 10 mins quicker with the Laminova in place.
The added bonus too is that should you have an engine blow up the Laminova can be taken apart, cleaned and reused. In the same situation a conventional cooler would be in the bin.
The extra weight is minimal and easily clawed back by upgrading the battery etc
Might even add one to my gearbox soon